Home / 126,318.78-174,319.56-69,729.75

Finding the Fourth Proportional to 126,318.78, 174,319.56 and 69,729.75

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Solution

The fourth proportional to 126,318.78, 174,319.56 and 69,729.75 is: 96,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,318.78 : 174,319.56 = 69,729.75 : x
  2. Step 2: Convert to fraction form
    126,318.78/174,319.56 = 69,729.75/x
  3. Step 3: Cross multiply
    126,318.78x = 174,319.56 × 69,729.75
  4. Step 4: Simplify right side
    126,318.78x = 12,155,259,338.91
  5. Step 5: Solve for x
    x = 12,155,259,338.91/126,318.78
  6. Step 6: Final answer
    x = 96,226.86

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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.