Home / 126,295.13-189,446.78-66,308.42

Finding the Fourth Proportional to 126,295.13, 189,446.78 and 66,308.42

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Solution

The fourth proportional to 126,295.13, 189,446.78 and 66,308.42 is: 99,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,295.13 : 189,446.78 = 66,308.42 : x
  2. Step 2: Convert to fraction form
    126,295.13/189,446.78 = 66,308.42/x
  3. Step 3: Cross multiply
    126,295.13x = 189,446.78 × 66,308.42
  4. Step 4: Simplify right side
    126,295.13x = 12,561,917,295.28
  5. Step 5: Solve for x
    x = 12,561,917,295.28/126,295.13
  6. Step 6: Final answer
    x = 99,464.78

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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.