Finding the Fourth Proportional to 115,657.44, 159,545.70 and 70,349.28
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Solution
The fourth proportional to 115,657.44, 159,545.70 and 70,349.28 is: 97,044.56
Step by Step Solution
- Step 1: Write the proportion equation
115,657.44 : 159,545.70 = 70,349.28 : x - Step 2: Convert to fraction form
115,657.44/159,545.70 = 70,349.28/x - Step 3: Cross multiply
115,657.44x = 159,545.70 × 70,349.28 - Step 4: Simplify right side
115,657.44x = 11,223,925,122.10 - Step 5: Solve for x
x = 11,223,925,122.10/115,657.44 - Step 6: Final answer
x = 97,044.56
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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.