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Finding the Fourth Proportional to 100,335.87, 138,467.88 and 60,041.97

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Solution

The fourth proportional to 100,335.87, 138,467.88 and 60,041.97 is: 82,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,335.87 : 138,467.88 = 60,041.97 : x
  2. Step 2: Convert to fraction form
    100,335.87/138,467.88 = 60,041.97/x
  3. Step 3: Cross multiply
    100,335.87x = 138,467.88 × 60,041.97
  4. Step 4: Simplify right side
    100,335.87x = 8,313,884,296.92
  5. Step 5: Solve for x
    x = 8,313,884,296.92/100,335.87
  6. Step 6: Final answer
    x = 82,860.54

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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.