Home / 125,165.51-187,766.17-38,618.72

Finding the Fourth Proportional to 125,165.51, 187,766.17 and 38,618.72

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Solution

The fourth proportional to 125,165.51, 187,766.17 and 38,618.72 is: 57,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.51 : 187,766.17 = 38,618.72 : x
  2. Step 2: Convert to fraction form
    125,165.51/187,766.17 = 38,618.72/x
  3. Step 3: Cross multiply
    125,165.51x = 187,766.17 × 38,618.72
  4. Step 4: Simplify right side
    125,165.51x = 7,251,288,813.45
  5. Step 5: Solve for x
    x = 7,251,288,813.45/125,165.51
  6. Step 6: Final answer
    x = 57,933.60

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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.