Home / 100,114.41-138,144.24-59,819.66

Finding the Fourth Proportional to 100,114.41, 138,144.24 and 59,819.66

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Solution

The fourth proportional to 100,114.41, 138,144.24 and 59,819.66 is: 82,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,114.41 : 138,144.24 = 59,819.66 : x
  2. Step 2: Convert to fraction form
    100,114.41/138,144.24 = 59,819.66/x
  3. Step 3: Cross multiply
    100,114.41x = 138,144.24 × 59,819.66
  4. Step 4: Simplify right side
    100,114.41x = 8,263,740,777.04
  5. Step 5: Solve for x
    x = 8,263,740,777.04/100,114.41
  6. Step 6: Final answer
    x = 82,542.97

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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.