Home / 131,149.34-196,920.83-75,052.78

Finding the Fourth Proportional to 131,149.34, 196,920.83 and 75,052.78

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Solution

The fourth proportional to 131,149.34, 196,920.83 and 75,052.78 is: 112,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,149.34 : 196,920.83 = 75,052.78 : x
  2. Step 2: Convert to fraction form
    131,149.34/196,920.83 = 75,052.78/x
  3. Step 3: Cross multiply
    131,149.34x = 196,920.83 × 75,052.78
  4. Step 4: Simplify right side
    131,149.34x = 14,779,455,731.41
  5. Step 5: Solve for x
    x = 14,779,455,731.41/131,149.34
  6. Step 6: Final answer
    x = 112,691.80

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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.