Home / 125,126.14-187,689.21-31,631.89

Finding the Fourth Proportional to 125,126.14, 187,689.21 and 31,631.89

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Solution

The fourth proportional to 125,126.14, 187,689.21 and 31,631.89 is: 47,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126.14 : 187,689.21 = 31,631.89 : x
  2. Step 2: Convert to fraction form
    125,126.14/187,689.21 = 31,631.89/x
  3. Step 3: Cross multiply
    125,126.14x = 187,689.21 × 31,631.89
  4. Step 4: Simplify right side
    125,126.14x = 5,936,964,444.91
  5. Step 5: Solve for x
    x = 5,936,964,444.91/125,126.14
  6. Step 6: Final answer
    x = 47,447.84

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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.