Home / 92,221.83-126,998.12-80,116.78

Finding the Fourth Proportional to 92,221.83, 126,998.12 and 80,116.78

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Solution

The fourth proportional to 92,221.83, 126,998.12 and 80,116.78 is: 110,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,221.83 : 126,998.12 = 80,116.78 : x
  2. Step 2: Convert to fraction form
    92,221.83/126,998.12 = 80,116.78/x
  3. Step 3: Cross multiply
    92,221.83x = 126,998.12 × 80,116.78
  4. Step 4: Simplify right side
    92,221.83x = 10,174,680,440.45
  5. Step 5: Solve for x
    x = 10,174,680,440.45/92,221.83
  6. Step 6: Final answer
    x = 110,328.33

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1.5x scale

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.