Home / 187,419.40-280,818.06-131,898.76

Finding the Fourth Proportional to 187,419.40, 280,818.06 and 131,898.76

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Solution

The fourth proportional to 187,419.40, 280,818.06 and 131,898.76 is: 197,629.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,419.40 : 280,818.06 = 131,898.76 : x
  2. Step 2: Convert to fraction form
    187,419.40/280,818.06 = 131,898.76/x
  3. Step 3: Cross multiply
    187,419.40x = 280,818.06 × 131,898.76
  4. Step 4: Simplify right side
    187,419.40x = 37,039,553,899.61
  5. Step 5: Solve for x
    x = 37,039,553,899.61/187,419.40
  6. Step 6: Final answer
    x = 197,629.24

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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.