Home / 100,769.22-139,046.85-60,474.42

Finding the Fourth Proportional to 100,769.22, 139,046.85 and 60,474.42

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Solution

The fourth proportional to 100,769.22, 139,046.85 and 60,474.42 is: 83,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,769.22 : 139,046.85 = 60,474.42 : x
  2. Step 2: Convert to fraction form
    100,769.22/139,046.85 = 60,474.42/x
  3. Step 3: Cross multiply
    100,769.22x = 139,046.85 × 60,474.42
  4. Step 4: Simplify right side
    100,769.22x = 8,408,777,606.58
  5. Step 5: Solve for x
    x = 8,408,777,606.58/100,769.22
  6. Step 6: Final answer
    x = 83,445.89

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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.