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Finding the Fourth Proportional to 141,908.66, 212,437.96 and 136,861.78

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Solution

The fourth proportional to 141,908.66, 212,437.96 and 136,861.78 is: 204,882.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,908.66 : 212,437.96 = 136,861.78 : x
  2. Step 2: Convert to fraction form
    141,908.66/212,437.96 = 136,861.78/x
  3. Step 3: Cross multiply
    141,908.66x = 212,437.96 × 136,861.78
  4. Step 4: Simplify right side
    141,908.66x = 29,074,637,345.17
  5. Step 5: Solve for x
    x = 29,074,637,345.17/141,908.66
  6. Step 6: Final answer
    x = 204,882.76

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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.