Home / 281,531.52-422,258.40-71,156.70

Finding the Fourth Proportional to 281,531.52, 422,258.40 and 71,156.70

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Solution

The fourth proportional to 281,531.52, 422,258.40 and 71,156.70 is: 106,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,531.52 : 422,258.40 = 71,156.70 : x
  2. Step 2: Convert to fraction form
    281,531.52/422,258.40 = 71,156.70/x
  3. Step 3: Cross multiply
    281,531.52x = 422,258.40 × 71,156.70
  4. Step 4: Simplify right side
    281,531.52x = 30,046,514,291.28
  5. Step 5: Solve for x
    x = 30,046,514,291.28/281,531.52
  6. Step 6: Final answer
    x = 106,725.22

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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.