Finding the Fourth Proportional to 104,762.80, 144,207.52 and 91,310.68
Calculator
Solution
The fourth proportional to 104,762.80, 144,207.52 and 91,310.68 is: 125,690.48
Step by Step Solution
- Step 1: Write the proportion equation
104,762.80 : 144,207.52 = 91,310.68 : x - Step 2: Convert to fraction form
104,762.80/144,207.52 = 91,310.68/x - Step 3: Cross multiply
104,762.80x = 144,207.52 × 91,310.68 - Step 4: Simplify right side
104,762.80x = 13,167,686,712.31 - Step 5: Solve for x
x = 13,167,686,712.31/104,762.80 - Step 6: Final answer
x = 125,690.48
Related Problems
Find fourth proportional to 52,381.40, 72,103.76 and 45,655.34
Half scale
Find fourth proportional to 209,525.60, 288,415.04 and 182,621.36
Double scale
Find fourth proportional to 104,763.80, 144,208.90 and 91,311.68
Similar ratio
Find fourth proportional to 157,144.20, 216,311.28 and 136,966.02
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.