Home / 125,238.30-187,414.00-77,875.70

Finding the Fourth Proportional to 125,238.30, 187,414.00 and 77,875.70

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Solution

The fourth proportional to 125,238.30, 187,414.00 and 77,875.70 is: 116,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,238.30 : 187,414.00 = 77,875.70 : x
  2. Step 2: Convert to fraction form
    125,238.30/187,414.00 = 77,875.70/x
  3. Step 3: Cross multiply
    125,238.30x = 187,414.00 × 77,875.70
  4. Step 4: Simplify right side
    125,238.30x = 14,594,995,113.35
  5. Step 5: Solve for x
    x = 14,594,995,113.35/125,238.30
  6. Step 6: Final answer
    x = 116,537.79

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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.