Home / 126,500.20-174,650.79-78,823.60

Finding the Fourth Proportional to 126,500.20, 174,650.79 and 78,823.60

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Solution

The fourth proportional to 126,500.20, 174,650.79 and 78,823.60 is: 108,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.20 : 174,650.79 = 78,823.60 : x
  2. Step 2: Convert to fraction form
    126,500.20/174,650.79 = 78,823.60/x
  3. Step 3: Cross multiply
    126,500.20x = 174,650.79 × 78,823.60
  4. Step 4: Simplify right side
    126,500.20x = 13,766,604,010.64
  5. Step 5: Solve for x
    x = 13,766,604,010.64/126,500.20
  6. Step 6: Final answer
    x = 108,826.74

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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.