Finding the Fourth Proportional to 175,507.19, 263,163.54 and 81,961.91
Calculator
Solution
The fourth proportional to 175,507.19, 263,163.54 and 81,961.91 is: 122,897.45
Step by Step Solution
- Step 1: Write the proportion equation
175,507.19 : 263,163.54 = 81,961.91 : x - Step 2: Convert to fraction form
175,507.19/263,163.54 = 81,961.91/x - Step 3: Cross multiply
175,507.19x = 263,163.54 × 81,961.91 - Step 4: Simplify right side
175,507.19x = 21,569,386,380.76 - Step 5: Solve for x
x = 21,569,386,380.76/175,507.19 - Step 6: Final answer
x = 122,897.45
Related Problems
Find fourth proportional to 87,753.60, 131,581.77 and 40,980.96
Half scale
Find fourth proportional to 351,014.38, 526,327.08 and 163,923.82
Double scale
Find fourth proportional to 175,508.19, 263,165.04 and 81,962.91
Similar ratio
Find fourth proportional to 263,260.79, 394,745.31 and 122,942.87
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.