Home / 131,839.08-181,949.12-74,488.92

Finding the Fourth Proportional to 131,839.08, 181,949.12 and 74,488.92

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Solution

The fourth proportional to 131,839.08, 181,949.12 and 74,488.92 is: 102,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,839.08 : 181,949.12 = 74,488.92 : x
  2. Step 2: Convert to fraction form
    131,839.08/181,949.12 = 74,488.92/x
  3. Step 3: Cross multiply
    131,839.08x = 181,949.12 × 74,488.92
  4. Step 4: Simplify right side
    131,839.08x = 13,553,193,443.75
  5. Step 5: Solve for x
    x = 13,553,193,443.75/131,839.08
  6. Step 6: Final answer
    x = 102,801.03

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1.5x scale

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.