Home / 92,321.06-138,481.58-71,291.76

Finding the Fourth Proportional to 92,321.06, 138,481.58 and 71,291.76

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Solution

The fourth proportional to 92,321.06, 138,481.58 and 71,291.76 is: 106,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.06 : 138,481.58 = 71,291.76 : x
  2. Step 2: Convert to fraction form
    92,321.06/138,481.58 = 71,291.76/x
  3. Step 3: Cross multiply
    92,321.06x = 138,481.58 × 71,291.76
  4. Step 4: Simplify right side
    92,321.06x = 9,872,595,209.32
  5. Step 5: Solve for x
    x = 9,872,595,209.32/92,321.06
  6. Step 6: Final answer
    x = 106,937.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.