Home / 138,316.80-207,475.20-126,069.60

Finding the Fourth Proportional to 138,316.80, 207,475.20 and 126,069.60

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Solution

The fourth proportional to 138,316.80, 207,475.20 and 126,069.60 is: 189,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,316.80 : 207,475.20 = 126,069.60 : x
  2. Step 2: Convert to fraction form
    138,316.80/207,475.20 = 126,069.60/x
  3. Step 3: Cross multiply
    138,316.80x = 207,475.20 × 126,069.60
  4. Step 4: Simplify right side
    138,316.80x = 26,156,315,473.92
  5. Step 5: Solve for x
    x = 26,156,315,473.92/138,316.80
  6. Step 6: Final answer
    x = 189,104.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.