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Finding the Fourth Proportional to 187,134.72, 258,247.72 and 102,251.76

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Solution

The fourth proportional to 187,134.72, 258,247.72 and 102,251.76 is: 141,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,134.72 : 258,247.72 = 102,251.76 : x
  2. Step 2: Convert to fraction form
    187,134.72/258,247.72 = 102,251.76/x
  3. Step 3: Cross multiply
    187,134.72x = 258,247.72 × 102,251.76
  4. Step 4: Simplify right side
    187,134.72x = 26,406,283,885.99
  5. Step 5: Solve for x
    x = 26,406,283,885.99/187,134.72
  6. Step 6: Final answer
    x = 141,108.42

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1.5x scale

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.