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Finding the Fourth Proportional to 101,581.02, 140,205.13 and 67,590.92

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Solution

The fourth proportional to 101,581.02, 140,205.13 and 67,590.92 is: 93,290.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,581.02 : 140,205.13 = 67,590.92 : x
  2. Step 2: Convert to fraction form
    101,581.02/140,205.13 = 67,590.92/x
  3. Step 3: Cross multiply
    101,581.02x = 140,205.13 × 67,590.92
  4. Step 4: Simplify right side
    101,581.02x = 9,476,593,906.96
  5. Step 5: Solve for x
    x = 9,476,593,906.96/101,581.02
  6. Step 6: Final answer
    x = 93,290.99

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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.