Home / 187,472.68-258,712.32-102,589.76

Finding the Fourth Proportional to 187,472.68, 258,712.32 and 102,589.76

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Solution

The fourth proportional to 187,472.68, 258,712.32 and 102,589.76 is: 141,573.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,472.68 : 258,712.32 = 102,589.76 : x
  2. Step 2: Convert to fraction form
    187,472.68/258,712.32 = 102,589.76/x
  3. Step 3: Cross multiply
    187,472.68x = 258,712.32 × 102,589.76
  4. Step 4: Simplify right side
    187,472.68x = 26,541,234,817.84
  5. Step 5: Solve for x
    x = 26,541,234,817.84/187,472.68
  6. Step 6: Final answer
    x = 141,573.88

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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.