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Finding the Fourth Proportional to 101,542.68, 140,143.65 and 58,513.79

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Solution

The fourth proportional to 101,542.68, 140,143.65 and 58,513.79 is: 80,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,542.68 : 140,143.65 = 58,513.79 : x
  2. Step 2: Convert to fraction form
    101,542.68/140,143.65 = 58,513.79/x
  3. Step 3: Cross multiply
    101,542.68x = 140,143.65 × 58,513.79
  4. Step 4: Simplify right side
    101,542.68x = 8,200,336,105.93
  5. Step 5: Solve for x
    x = 8,200,336,105.93/101,542.68
  6. Step 6: Final answer
    x = 80,757.53

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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.