Home / 109,145.38-150,620.39-61,398.73

Finding the Fourth Proportional to 109,145.38, 150,620.39 and 61,398.73

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Solution

The fourth proportional to 109,145.38, 150,620.39 and 61,398.73 is: 84,730.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,145.38 : 150,620.39 = 61,398.73 : x
  2. Step 2: Convert to fraction form
    109,145.38/150,620.39 = 61,398.73/x
  3. Step 3: Cross multiply
    109,145.38x = 150,620.39 × 61,398.73
  4. Step 4: Simplify right side
    109,145.38x = 9,247,899,922.39
  5. Step 5: Solve for x
    x = 9,247,899,922.39/109,145.38
  6. Step 6: Final answer
    x = 84,730.11

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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.