Finding the Fourth Proportional to 107,908.70, 161,863.05 and 60,475.10
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Solution
The fourth proportional to 107,908.70, 161,863.05 and 60,475.10 is: 90,712.65
Step by Step Solution
- Step 1: Write the proportion equation
107,908.70 : 161,863.05 = 60,475.10 : x - Step 2: Convert to fraction form
107,908.70/161,863.05 = 60,475.10/x - Step 3: Cross multiply
107,908.70x = 161,863.05 × 60,475.10 - Step 4: Simplify right side
107,908.70x = 9,788,684,135.06 - Step 5: Solve for x
x = 9,788,684,135.06/107,908.70 - Step 6: Final answer
x = 90,712.65
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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.