Finding the Fourth Proportional to 103,545.70, 155,318.55 and 97,713.70
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Solution
The fourth proportional to 103,545.70, 155,318.55 and 97,713.70 is: 146,570.55
Step by Step Solution
- Step 1: Write the proportion equation
103,545.70 : 155,318.55 = 97,713.70 : x - Step 2: Convert to fraction form
103,545.70/155,318.55 = 97,713.70/x - Step 3: Cross multiply
103,545.70x = 155,318.55 × 97,713.70 - Step 4: Simplify right side
103,545.70x = 15,176,750,199.14 - Step 5: Solve for x
x = 15,176,750,199.14/103,545.70 - Step 6: Final answer
x = 146,570.55
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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.