Home / 131,215.65-196,854.72-42,469.16

Finding the Fourth Proportional to 131,215.65, 196,854.72 and 42,469.16

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Solution

The fourth proportional to 131,215.65, 196,854.72 and 42,469.16 is: 63,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,215.65 : 196,854.72 = 42,469.16 : x
  2. Step 2: Convert to fraction form
    131,215.65/196,854.72 = 42,469.16/x
  3. Step 3: Cross multiply
    131,215.65x = 196,854.72 × 42,469.16
  4. Step 4: Simplify right side
    131,215.65x = 8,360,253,616.16
  5. Step 5: Solve for x
    x = 8,360,253,616.16/131,215.65
  6. Step 6: Final answer
    x = 63,713.85

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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.