Home / 126,517.55-189,801.38-66,574.62

Finding the Fourth Proportional to 126,517.55, 189,801.38 and 66,574.62

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Solution

The fourth proportional to 126,517.55, 189,801.38 and 66,574.62 is: 99,875.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,517.55 : 189,801.38 = 66,574.62 : x
  2. Step 2: Convert to fraction form
    126,517.55/189,801.38 = 66,574.62/x
  3. Step 3: Cross multiply
    126,517.55x = 189,801.38 × 66,574.62
  4. Step 4: Simplify right side
    126,517.55x = 12,635,954,416.10
  5. Step 5: Solve for x
    x = 12,635,954,416.10/126,517.55
  6. Step 6: Final answer
    x = 99,875.12

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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.