Home / 125,132.88-187,713.91-40,899.36

Finding the Fourth Proportional to 125,132.88, 187,713.91 and 40,899.36

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Solution

The fourth proportional to 125,132.88, 187,713.91 and 40,899.36 is: 61,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,132.88 : 187,713.91 = 40,899.36 : x
  2. Step 2: Convert to fraction form
    125,132.88/187,713.91 = 40,899.36/x
  3. Step 3: Cross multiply
    125,132.88x = 187,713.91 × 40,899.36
  4. Step 4: Simplify right side
    125,132.88x = 7,677,379,046.89
  5. Step 5: Solve for x
    x = 7,677,379,046.89/125,132.88
  6. Step 6: Final answer
    x = 61,353.81

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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.