Home / 126,310.28-174,308.16-69,721.64

Finding the Fourth Proportional to 126,310.28, 174,308.16 and 69,721.64

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Solution

The fourth proportional to 126,310.28, 174,308.16 and 69,721.64 is: 96,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,310.28 : 174,308.16 = 69,721.64 : x
  2. Step 2: Convert to fraction form
    126,310.28/174,308.16 = 69,721.64/x
  3. Step 3: Cross multiply
    126,310.28x = 174,308.16 × 69,721.64
  4. Step 4: Simplify right side
    126,310.28x = 12,153,050,780.58
  5. Step 5: Solve for x
    x = 12,153,050,780.58/126,310.28
  6. Step 6: Final answer
    x = 96,215.85

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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.