Home / 187,177.41-280,877.28-68,931.78

Finding the Fourth Proportional to 187,177.41, 280,877.28 and 68,931.78

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Solution

The fourth proportional to 187,177.41, 280,877.28 and 68,931.78 is: 103,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,177.41 : 280,877.28 = 68,931.78 : x
  2. Step 2: Convert to fraction form
    187,177.41/280,877.28 = 68,931.78/x
  3. Step 3: Cross multiply
    187,177.41x = 280,877.28 × 68,931.78
  4. Step 4: Simplify right side
    187,177.41x = 19,361,370,871.96
  5. Step 5: Solve for x
    x = 19,361,370,871.96/187,177.41
  6. Step 6: Final answer
    x = 103,438.61

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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.