Home / 120,778.48-166,671.10-67,062.12

Finding the Fourth Proportional to 120,778.48, 166,671.10 and 67,062.12

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Solution

The fourth proportional to 120,778.48, 166,671.10 and 67,062.12 is: 92,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,778.48 : 166,671.10 = 67,062.12 : x
  2. Step 2: Convert to fraction form
    120,778.48/166,671.10 = 67,062.12/x
  3. Step 3: Cross multiply
    120,778.48x = 166,671.10 × 67,062.12
  4. Step 4: Simplify right side
    120,778.48x = 11,177,316,767.54
  5. Step 5: Solve for x
    x = 11,177,316,767.54/120,778.48
  6. Step 6: Final answer
    x = 92,543.94

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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.