Home / 125,128.54-187,701.57-50,248.69

Finding the Fourth Proportional to 125,128.54, 187,701.57 and 50,248.69

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Solution

The fourth proportional to 125,128.54, 187,701.57 and 50,248.69 is: 75,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,128.54 : 187,701.57 = 50,248.69 : x
  2. Step 2: Convert to fraction form
    125,128.54/187,701.57 = 50,248.69/x
  3. Step 3: Cross multiply
    125,128.54x = 187,701.57 × 50,248.69
  4. Step 4: Simplify right side
    125,128.54x = 9,431,758,003.44
  5. Step 5: Solve for x
    x = 9,431,758,003.44/125,128.54
  6. Step 6: Final answer
    x = 75,376.55

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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.