Home / 131,422.20-197,111.70-36,658.86

Finding the Fourth Proportional to 131,422.20, 197,111.70 and 36,658.86

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Solution

The fourth proportional to 131,422.20, 197,111.70 and 36,658.86 is: 54,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,422.20 : 197,111.70 = 36,658.86 : x
  2. Step 2: Convert to fraction form
    131,422.20/197,111.70 = 36,658.86/x
  3. Step 3: Cross multiply
    131,422.20x = 197,111.70 × 36,658.86
  4. Step 4: Simplify right side
    131,422.20x = 7,225,890,214.66
  5. Step 5: Solve for x
    x = 7,225,890,214.66/131,422.20
  6. Step 6: Final answer
    x = 54,982.26

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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.