Home / 187,086.31-280,454.50-68,725.87

Finding the Fourth Proportional to 187,086.31, 280,454.50 and 68,725.87

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Solution

The fourth proportional to 187,086.31, 280,454.50 and 68,725.87 is: 103,024.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,086.31 : 280,454.50 = 68,725.87 : x
  2. Step 2: Convert to fraction form
    187,086.31/280,454.50 = 68,725.87/x
  3. Step 3: Cross multiply
    187,086.31x = 280,454.50 × 68,725.87
  4. Step 4: Simplify right side
    187,086.31x = 19,274,478,892.69
  5. Step 5: Solve for x
    x = 19,274,478,892.69/187,086.31
  6. Step 6: Final answer
    x = 103,024.53

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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.