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Finding the Fourth Proportional to 158,335.98, 218,492.28 and 86,704.44

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Solution

The fourth proportional to 158,335.98, 218,492.28 and 86,704.44 is: 119,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,335.98 : 218,492.28 = 86,704.44 : x
  2. Step 2: Convert to fraction form
    158,335.98/218,492.28 = 86,704.44/x
  3. Step 3: Cross multiply
    158,335.98x = 218,492.28 × 86,704.44
  4. Step 4: Simplify right side
    158,335.98x = 18,944,250,781.72
  5. Step 5: Solve for x
    x = 18,944,250,781.72/158,335.98
  6. Step 6: Final answer
    x = 119,645.90

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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.