Home / 187,203.15-280,646.78-87,310.71

Finding the Fourth Proportional to 187,203.15, 280,646.78 and 87,310.71

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Solution

The fourth proportional to 187,203.15, 280,646.78 and 87,310.71 is: 130,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,203.15 : 280,646.78 = 87,310.71 : x
  2. Step 2: Convert to fraction form
    187,203.15/280,646.78 = 87,310.71/x
  3. Step 3: Cross multiply
    187,203.15x = 280,646.78 × 87,310.71
  4. Step 4: Simplify right side
    187,203.15x = 24,503,469,184.46
  5. Step 5: Solve for x
    x = 24,503,469,184.46/187,203.15
  6. Step 6: Final answer
    x = 130,892.40

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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.