Finding the Fourth Proportional to 112,874.16, 155,763.96 and 62,572.08
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Solution
The fourth proportional to 112,874.16, 155,763.96 and 62,572.08 is: 86,348.15
Step by Step Solution
- Step 1: Write the proportion equation
112,874.16 : 155,763.96 = 62,572.08 : x - Step 2: Convert to fraction form
112,874.16/155,763.96 = 62,572.08/x - Step 3: Cross multiply
112,874.16x = 155,763.96 × 62,572.08 - Step 4: Simplify right side
112,874.16x = 9,746,474,966.24 - Step 5: Solve for x
x = 9,746,474,966.24/112,874.16 - Step 6: Final answer
x = 86,348.15
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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.