Finding the Fourth Proportional to 159,915.65, 220,684.05 and 87,318.68
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Solution
The fourth proportional to 159,915.65, 220,684.05 and 87,318.68 is: 120,500.02
Step by Step Solution
- Step 1: Write the proportion equation
159,915.65 : 220,684.05 = 87,318.68 : x - Step 2: Convert to fraction form
159,915.65/220,684.05 = 87,318.68/x - Step 3: Cross multiply
159,915.65x = 220,684.05 × 87,318.68 - Step 4: Simplify right side
159,915.65x = 19,269,838,839.63 - Step 5: Solve for x
x = 19,269,838,839.63/159,915.65 - Step 6: Final answer
x = 120,500.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.