Home / 126,216.80-174,158.88-71,763.20

Finding the Fourth Proportional to 126,216.80, 174,158.88 and 71,763.20

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Solution

The fourth proportional to 126,216.80, 174,158.88 and 71,763.20 is: 99,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,216.80 : 174,158.88 = 71,763.20 : x
  2. Step 2: Convert to fraction form
    126,216.80/174,158.88 = 71,763.20/x
  3. Step 3: Cross multiply
    126,216.80x = 174,158.88 × 71,763.20
  4. Step 4: Simplify right side
    126,216.80x = 12,498,198,537.22
  5. Step 5: Solve for x
    x = 12,498,198,537.22/126,216.80
  6. Step 6: Final answer
    x = 99,021.67

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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.