Home / 131,979.62-182,065.03-83,500.20

Finding the Fourth Proportional to 131,979.62, 182,065.03 and 83,500.20

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Solution

The fourth proportional to 131,979.62, 182,065.03 and 83,500.20 is: 115,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,979.62 : 182,065.03 = 83,500.20 : x
  2. Step 2: Convert to fraction form
    131,979.62/182,065.03 = 83,500.20/x
  3. Step 3: Cross multiply
    131,979.62x = 182,065.03 × 83,500.20
  4. Step 4: Simplify right side
    131,979.62x = 15,202,466,418.01
  5. Step 5: Solve for x
    x = 15,202,466,418.01/131,979.62
  6. Step 6: Final answer
    x = 115,187.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.