Home / 126,501.20-174,652.17-78,824.60

Finding the Fourth Proportional to 126,501.20, 174,652.17 and 78,824.60

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Solution

The fourth proportional to 126,501.20, 174,652.17 and 78,824.60 is: 108,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,501.20 : 174,652.17 = 78,824.60 : x
  2. Step 2: Convert to fraction form
    126,501.20/174,652.17 = 78,824.60/x
  3. Step 3: Cross multiply
    126,501.20x = 174,652.17 × 78,824.60
  4. Step 4: Simplify right side
    126,501.20x = 13,766,887,439.38
  5. Step 5: Solve for x
    x = 13,766,887,439.38/126,501.20
  6. Step 6: Final answer
    x = 108,828.12

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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.