Finding the Fourth Proportional to 159,618.90, 239,428.35 and 103,631.70
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Solution
The fourth proportional to 159,618.90, 239,428.35 and 103,631.70 is: 155,447.55
Step by Step Solution
- Step 1: Write the proportion equation
159,618.90 : 239,428.35 = 103,631.70 : x - Step 2: Convert to fraction form
159,618.90/239,428.35 = 103,631.70/x - Step 3: Cross multiply
159,618.90x = 239,428.35 × 103,631.70 - Step 4: Simplify right side
159,618.90x = 24,812,366,938.70 - Step 5: Solve for x
x = 24,812,366,938.70/159,618.90 - Step 6: Final answer
x = 155,447.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.