Finding the Fourth Proportional to 134,248.14, 201,306.42 and 78,107.82
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Solution
The fourth proportional to 134,248.14, 201,306.42 and 78,107.82 is: 117,123.45
Step by Step Solution
- Step 1: Write the proportion equation
134,248.14 : 201,306.42 = 78,107.82 : x - Step 2: Convert to fraction form
134,248.14/201,306.42 = 78,107.82/x - Step 3: Cross multiply
134,248.14x = 201,306.42 × 78,107.82 - Step 4: Simplify right side
134,248.14x = 15,723,605,618.20 - Step 5: Solve for x
x = 15,723,605,618.20/134,248.14 - Step 6: Final answer
x = 117,123.45
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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.