Finding the Fourth Proportional to 100,610.08, 138,847.68 and 55,898.08
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Solution
The fourth proportional to 100,610.08, 138,847.68 and 55,898.08 is: 77,142.56
Step by Step Solution
- Step 1: Write the proportion equation
100,610.08 : 138,847.68 = 55,898.08 : x - Step 2: Convert to fraction form
100,610.08/138,847.68 = 55,898.08/x - Step 3: Cross multiply
100,610.08x = 138,847.68 × 55,898.08 - Step 4: Simplify right side
100,610.08x = 7,761,318,724.45 - Step 5: Solve for x
x = 7,761,318,724.45/100,610.08 - Step 6: Final answer
x = 77,142.56
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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.