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Finding the Fourth Proportional to 160,013.98, 220,815.11 and 88,392.47

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Solution

The fourth proportional to 160,013.98, 220,815.11 and 88,392.47 is: 121,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,013.98 : 220,815.11 = 88,392.47 : x
  2. Step 2: Convert to fraction form
    160,013.98/220,815.11 = 88,392.47/x
  3. Step 3: Cross multiply
    160,013.98x = 220,815.11 × 88,392.47
  4. Step 4: Simplify right side
    160,013.98x = 19,518,392,103.13
  5. Step 5: Solve for x
    x = 19,518,392,103.13/160,013.98
  6. Step 6: Final answer
    x = 121,979.29

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1.5x scale

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.