Home / 345,169.65-517,789.80-132,116.57

Finding the Fourth Proportional to 345,169.65, 517,789.80 and 132,116.57

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Solution

The fourth proportional to 345,169.65, 517,789.80 and 132,116.57 is: 198,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,169.65 : 517,789.80 = 132,116.57 : x
  2. Step 2: Convert to fraction form
    345,169.65/517,789.80 = 132,116.57/x
  3. Step 3: Cross multiply
    345,169.65x = 517,789.80 × 132,116.57
  4. Step 4: Simplify right side
    345,169.65x = 68,408,609,768.04
  5. Step 5: Solve for x
    x = 68,408,609,768.04/345,169.65
  6. Step 6: Final answer
    x = 198,188.37

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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.