Home / 100,329.31-138,406.74-60,034.96

Finding the Fourth Proportional to 100,329.31, 138,406.74 and 60,034.96

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Solution

The fourth proportional to 100,329.31, 138,406.74 and 60,034.96 is: 82,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,329.31 : 138,406.74 = 60,034.96 : x
  2. Step 2: Convert to fraction form
    100,329.31/138,406.74 = 60,034.96/x
  3. Step 3: Cross multiply
    100,329.31x = 138,406.74 × 60,034.96
  4. Step 4: Simplify right side
    100,329.31x = 8,309,242,407.60
  5. Step 5: Solve for x
    x = 8,309,242,407.60/100,329.31
  6. Step 6: Final answer
    x = 82,819.69

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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.