Home / 125,185.32-187,778.30-31,691.08

Finding the Fourth Proportional to 125,185.32, 187,778.30 and 31,691.08

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Solution

The fourth proportional to 125,185.32, 187,778.30 and 31,691.08 is: 47,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,185.32 : 187,778.30 = 31,691.08 : x
  2. Step 2: Convert to fraction form
    125,185.32/187,778.30 = 31,691.08/x
  3. Step 3: Cross multiply
    125,185.32x = 187,778.30 × 31,691.08
  4. Step 4: Simplify right side
    125,185.32x = 5,950,897,127.56
  5. Step 5: Solve for x
    x = 5,950,897,127.56/125,185.32
  6. Step 6: Final answer
    x = 47,536.70

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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.