Finding the Fourth Proportional to 185,385.12, 255,695.58 and 121,699.68
Calculator
Solution
The fourth proportional to 185,385.12, 255,695.58 and 121,699.68 is: 167,856.35
Step by Step Solution
- Step 1: Write the proportion equation
185,385.12 : 255,695.58 = 121,699.68 : x - Step 2: Convert to fraction form
185,385.12/255,695.58 = 121,699.68/x - Step 3: Cross multiply
185,385.12x = 255,695.58 × 121,699.68 - Step 4: Simplify right side
185,385.12x = 31,118,070,263.41 - Step 5: Solve for x
x = 31,118,070,263.41/185,385.12 - Step 6: Final answer
x = 167,856.35
Related Problems
Find fourth proportional to 92,692.56, 127,847.79 and 60,849.84
Half scale
Find fourth proportional to 370,770.24, 511,391.16 and 243,399.36
Double scale
Find fourth proportional to 185,386.12, 255,696.96 and 121,700.68
Similar ratio
Find fourth proportional to 278,077.68, 383,543.37 and 182,549.52
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.