Home / 126,348.26-189,458.92-42,078.64

Finding the Fourth Proportional to 126,348.26, 189,458.92 and 42,078.64

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Solution

The fourth proportional to 126,348.26, 189,458.92 and 42,078.64 is: 63,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,348.26 : 189,458.92 = 42,078.64 : x
  2. Step 2: Convert to fraction form
    126,348.26/189,458.92 = 42,078.64/x
  3. Step 3: Cross multiply
    126,348.26x = 189,458.92 × 42,078.64
  4. Step 4: Simplify right side
    126,348.26x = 7,972,173,689.47
  5. Step 5: Solve for x
    x = 7,972,173,689.47/126,348.26
  6. Step 6: Final answer
    x = 63,096.82

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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.