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Finding the Fourth Proportional to 100,254.52, 138,347.22 and 59,944.47

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Solution

The fourth proportional to 100,254.52, 138,347.22 and 59,944.47 is: 82,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,254.52 : 138,347.22 = 59,944.47 : x
  2. Step 2: Convert to fraction form
    100,254.52/138,347.22 = 59,944.47/x
  3. Step 3: Cross multiply
    100,254.52x = 138,347.22 × 59,944.47
  4. Step 4: Simplify right side
    100,254.52x = 8,293,150,778.87
  5. Step 5: Solve for x
    x = 8,293,150,778.87/100,254.52
  6. Step 6: Final answer
    x = 82,720.97

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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.