Home / 126,318.42-174,319.43-69,729.80

Finding the Fourth Proportional to 126,318.42, 174,319.43 and 69,729.80

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Solution

The fourth proportional to 126,318.42, 174,319.43 and 69,729.80 is: 96,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,318.42 : 174,319.43 = 69,729.80 : x
  2. Step 2: Convert to fraction form
    126,318.42/174,319.43 = 69,729.80/x
  3. Step 3: Cross multiply
    126,318.42x = 174,319.43 × 69,729.80
  4. Step 4: Simplify right side
    126,318.42x = 12,155,257,769.77
  5. Step 5: Solve for x
    x = 12,155,257,769.77/126,318.42
  6. Step 6: Final answer
    x = 96,227.12

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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.