Finding the Fourth Proportional to 125,991.29, 173,868.45 and 69,402.53
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Solution
The fourth proportional to 125,991.29, 173,868.45 and 69,402.53 is: 95,775.75
Step by Step Solution
- Step 1: Write the proportion equation
125,991.29 : 173,868.45 = 69,402.53 : x - Step 2: Convert to fraction form
125,991.29/173,868.45 = 69,402.53/x - Step 3: Cross multiply
125,991.29x = 173,868.45 × 69,402.53 - Step 4: Simplify right side
125,991.29x = 12,066,909,970.17 - Step 5: Solve for x
x = 12,066,909,970.17/125,991.29 - Step 6: Final answer
x = 95,775.75
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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.