Finding the Fourth Proportional to 125,154.75, 172,712.12 and 67,792.99
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Solution
The fourth proportional to 125,154.75, 172,712.12 and 67,792.99 is: 93,553.55
Step by Step Solution
- Step 1: Write the proportion equation
125,154.75 : 172,712.12 = 67,792.99 : x - Step 2: Convert to fraction form
125,154.75/172,712.12 = 67,792.99/x - Step 3: Cross multiply
125,154.75x = 172,712.12 × 67,792.99 - Step 4: Simplify right side
125,154.75x = 11,708,671,024.04 - Step 5: Solve for x
x = 11,708,671,024.04/125,154.75 - Step 6: Final answer
x = 93,553.55
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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.