Home / 109,218.78-163,855.51-34,335.90

Finding the Fourth Proportional to 109,218.78, 163,855.51 and 34,335.90

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Solution

The fourth proportional to 109,218.78, 163,855.51 and 34,335.90 is: 51,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,218.78 : 163,855.51 = 34,335.90 : x
  2. Step 2: Convert to fraction form
    109,218.78/163,855.51 = 34,335.90/x
  3. Step 3: Cross multiply
    109,218.78x = 163,855.51 × 34,335.90
  4. Step 4: Simplify right side
    109,218.78x = 5,626,126,319.97
  5. Step 5: Solve for x
    x = 5,626,126,319.97/109,218.78
  6. Step 6: Final answer
    x = 51,512.44

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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.