Home / 126,319.88-174,315.31-71,866.92

Finding the Fourth Proportional to 126,319.88, 174,315.31 and 71,866.92

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Solution

The fourth proportional to 126,319.88, 174,315.31 and 71,866.92 is: 99,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,319.88 : 174,315.31 = 71,866.92 : x
  2. Step 2: Convert to fraction form
    126,319.88/174,315.31 = 71,866.92/x
  3. Step 3: Cross multiply
    126,319.88x = 174,315.31 × 71,866.92
  4. Step 4: Simplify right side
    126,319.88x = 12,527,504,438.55
  5. Step 5: Solve for x
    x = 12,527,504,438.55/126,319.88
  6. Step 6: Final answer
    x = 99,172.87

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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.