Home / 131,345.43-196,891.38-42,538.65

Finding the Fourth Proportional to 131,345.43, 196,891.38 and 42,538.65

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Solution

The fourth proportional to 131,345.43, 196,891.38 and 42,538.65 is: 63,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,345.43 : 196,891.38 = 42,538.65 : x
  2. Step 2: Convert to fraction form
    131,345.43/196,891.38 = 42,538.65/x
  3. Step 3: Cross multiply
    131,345.43x = 196,891.38 × 42,538.65
  4. Step 4: Simplify right side
    131,345.43x = 8,375,493,501.84
  5. Step 5: Solve for x
    x = 8,375,493,501.84/131,345.43
  6. Step 6: Final answer
    x = 63,766.92

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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.