Home / 100,584.74-138,749.20-62,793.38

Finding the Fourth Proportional to 100,584.74, 138,749.20 and 62,793.38

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Solution

The fourth proportional to 100,584.74, 138,749.20 and 62,793.38 is: 86,618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,584.74 : 138,749.20 = 62,793.38 : x
  2. Step 2: Convert to fraction form
    100,584.74/138,749.20 = 62,793.38/x
  3. Step 3: Cross multiply
    100,584.74x = 138,749.20 × 62,793.38
  4. Step 4: Simplify right side
    100,584.74x = 8,712,530,232.58
  5. Step 5: Solve for x
    x = 8,712,530,232.58/100,584.74
  6. Step 6: Final answer
    x = 86,618.81

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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.