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Finding the Fourth Proportional to 158,818.67, 219,107.25 and 90,799.10

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Solution

The fourth proportional to 158,818.67, 219,107.25 and 90,799.10 is: 125,267.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,818.67 : 219,107.25 = 90,799.10 : x
  2. Step 2: Convert to fraction form
    158,818.67/219,107.25 = 90,799.10/x
  3. Step 3: Cross multiply
    158,818.67x = 219,107.25 × 90,799.10
  4. Step 4: Simplify right side
    158,818.67x = 19,894,741,103.48
  5. Step 5: Solve for x
    x = 19,894,741,103.48/158,818.67
  6. Step 6: Final answer
    x = 125,267.02

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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.