Finding the Fourth Proportional to 129,369.33, 178,470.68 and 93,502.53
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Solution
The fourth proportional to 129,369.33, 178,470.68 and 93,502.53 is: 128,990.85
Step by Step Solution
- Step 1: Write the proportion equation
129,369.33 : 178,470.68 = 93,502.53 : x - Step 2: Convert to fraction form
129,369.33/178,470.68 = 93,502.53/x - Step 3: Cross multiply
129,369.33x = 178,470.68 × 93,502.53 - Step 4: Simplify right side
129,369.33x = 16,687,459,643.31 - Step 5: Solve for x
x = 16,687,459,643.31/129,369.33 - Step 6: Final answer
x = 128,990.85
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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.