Home / 126,780.50-174,956.43-69,418.78

Finding the Fourth Proportional to 126,780.50, 174,956.43 and 69,418.78

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Solution

The fourth proportional to 126,780.50, 174,956.43 and 69,418.78 is: 95,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,780.50 : 174,956.43 = 69,418.78 : x
  2. Step 2: Convert to fraction form
    126,780.50/174,956.43 = 69,418.78/x
  3. Step 3: Cross multiply
    126,780.50x = 174,956.43 × 69,418.78
  4. Step 4: Simplify right side
    126,780.50x = 12,145,261,923.76
  5. Step 5: Solve for x
    x = 12,145,261,923.76/126,780.50
  6. Step 6: Final answer
    x = 95,797.56

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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.