Home / 125,269.92-187,787.28-42,105.60

Finding the Fourth Proportional to 125,269.92, 187,787.28 and 42,105.60

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Solution

The fourth proportional to 125,269.92, 187,787.28 and 42,105.60 is: 63,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,269.92 : 187,787.28 = 42,105.60 : x
  2. Step 2: Convert to fraction form
    125,269.92/187,787.28 = 42,105.60/x
  3. Step 3: Cross multiply
    125,269.92x = 187,787.28 × 42,105.60
  4. Step 4: Simplify right side
    125,269.92x = 7,906,896,096.77
  5. Step 5: Solve for x
    x = 7,906,896,096.77/125,269.92
  6. Step 6: Final answer
    x = 63,118.87

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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.