Home / 125,134.20-187,479.36-103,950

Finding the Fourth Proportional to 125,134.20, 187,479.36 and 103,950

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Solution

The fourth proportional to 125,134.20, 187,479.36 and 103,950 is: 155,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,134.20 : 187,479.36 = 103,950 : x
  2. Step 2: Convert to fraction form
    125,134.20/187,479.36 = 103,950/x
  3. Step 3: Cross multiply
    125,134.20x = 187,479.36 × 103,950
  4. Step 4: Simplify right side
    125,134.20x = 19,488,479,472
  5. Step 5: Solve for x
    x = 19,488,479,472/125,134.20
  6. Step 6: Final answer
    x = 155,740.63

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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.