Home / 125,301.80-187,952.70-31,807.55

Finding the Fourth Proportional to 125,301.80, 187,952.70 and 31,807.55

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Solution

The fourth proportional to 125,301.80, 187,952.70 and 31,807.55 is: 47,711.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,301.80 : 187,952.70 = 31,807.55 : x
  2. Step 2: Convert to fraction form
    125,301.80/187,952.70 = 31,807.55/x
  3. Step 3: Cross multiply
    125,301.80x = 187,952.70 × 31,807.55
  4. Step 4: Simplify right side
    125,301.80x = 5,978,314,902.89
  5. Step 5: Solve for x
    x = 5,978,314,902.89/125,301.80
  6. Step 6: Final answer
    x = 47,711.33

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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.