Home / 125,150.29-187,723.72-30,381.20

Finding the Fourth Proportional to 125,150.29, 187,723.72 and 30,381.20

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Solution

The fourth proportional to 125,150.29, 187,723.72 and 30,381.20 is: 45,571.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,150.29 : 187,723.72 = 30,381.20 : x
  2. Step 2: Convert to fraction form
    125,150.29/187,723.72 = 30,381.20/x
  3. Step 3: Cross multiply
    125,150.29x = 187,723.72 × 30,381.20
  4. Step 4: Simplify right side
    125,150.29x = 5,703,270,791.54
  5. Step 5: Solve for x
    x = 5,703,270,791.54/125,150.29
  6. Step 6: Final answer
    x = 45,571.38

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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.