Home / 125,028.20-187,492.89-40,767.65

Finding the Fourth Proportional to 125,028.20, 187,492.89 and 40,767.65

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Solution

The fourth proportional to 125,028.20, 187,492.89 and 40,767.65 is: 61,135.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,028.20 : 187,492.89 = 40,767.65 : x
  2. Step 2: Convert to fraction form
    125,028.20/187,492.89 = 40,767.65/x
  3. Step 3: Cross multiply
    125,028.20x = 187,492.89 × 40,767.65
  4. Step 4: Simplify right side
    125,028.20x = 7,643,644,517.01
  5. Step 5: Solve for x
    x = 7,643,644,517.01/125,028.20
  6. Step 6: Final answer
    x = 61,135.36

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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.