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Finding the Fourth Proportional to 113,938.97, 170,894.29 and 71,248.12

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Solution

The fourth proportional to 113,938.97, 170,894.29 and 71,248.12 is: 106,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,938.97 : 170,894.29 = 71,248.12 : x
  2. Step 2: Convert to fraction form
    113,938.97/170,894.29 = 71,248.12/x
  3. Step 3: Cross multiply
    113,938.97x = 170,894.29 × 71,248.12
  4. Step 4: Simplify right side
    113,938.97x = 12,175,897,370.75
  5. Step 5: Solve for x
    x = 12,175,897,370.75/113,938.97
  6. Step 6: Final answer
    x = 106,863.33

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1.5x scale

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.