Home / 126,340.85-174,330.51-72,615.83

Finding the Fourth Proportional to 126,340.85, 174,330.51 and 72,615.83

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Solution

The fourth proportional to 126,340.85, 174,330.51 and 72,615.83 is: 100,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,340.85 : 174,330.51 = 72,615.83 : x
  2. Step 2: Convert to fraction form
    126,340.85/174,330.51 = 72,615.83/x
  3. Step 3: Cross multiply
    126,340.85x = 174,330.51 × 72,615.83
  4. Step 4: Simplify right side
    126,340.85x = 12,659,153,806.32
  5. Step 5: Solve for x
    x = 12,659,153,806.32/126,340.85
  6. Step 6: Final answer
    x = 100,198.43

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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.