Finding the Fourth Proportional to 98,898.80, 136,471.55 and 58,605.75
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Solution
The fourth proportional to 98,898.80, 136,471.55 and 58,605.75 is: 80,870.72
Step by Step Solution
- Step 1: Write the proportion equation
98,898.80 : 136,471.55 = 58,605.75 : x - Step 2: Convert to fraction form
98,898.80/136,471.55 = 58,605.75/x - Step 3: Cross multiply
98,898.80x = 136,471.55 × 58,605.75 - Step 4: Simplify right side
98,898.80x = 7,998,017,248.38 - Step 5: Solve for x
x = 7,998,017,248.38/98,898.80 - Step 6: Final answer
x = 80,870.72
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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.