Home / 123,672.38-185,508.99-30,178.13

Finding the Fourth Proportional to 123,672.38, 185,508.99 and 30,178.13

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Solution

The fourth proportional to 123,672.38, 185,508.99 and 30,178.13 is: 45,267.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,672.38 : 185,508.99 = 30,178.13 : x
  2. Step 2: Convert to fraction form
    123,672.38/185,508.99 = 30,178.13/x
  3. Step 3: Cross multiply
    123,672.38x = 185,508.99 × 30,178.13
  4. Step 4: Simplify right side
    123,672.38x = 5,598,313,488.84
  5. Step 5: Solve for x
    x = 5,598,313,488.84/123,672.38
  6. Step 6: Final answer
    x = 45,267.29

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1.5x scale

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.