Home / 131,324.76-196,991.46-42,579

Finding the Fourth Proportional to 131,324.76, 196,991.46 and 42,579

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Solution

The fourth proportional to 131,324.76, 196,991.46 and 42,579 is: 63,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,324.76 : 196,991.46 = 42,579 : x
  2. Step 2: Convert to fraction form
    131,324.76/196,991.46 = 42,579/x
  3. Step 3: Cross multiply
    131,324.76x = 196,991.46 × 42,579
  4. Step 4: Simplify right side
    131,324.76x = 8,387,699,375.34
  5. Step 5: Solve for x
    x = 8,387,699,375.34/131,324.76
  6. Step 6: Final answer
    x = 63,869.90

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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.