Home / 156,979.30-216,620.13-88,997.62

Finding the Fourth Proportional to 156,979.30, 216,620.13 and 88,997.62

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Solution

The fourth proportional to 156,979.30, 216,620.13 and 88,997.62 is: 122,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.30 : 216,620.13 = 88,997.62 : x
  2. Step 2: Convert to fraction form
    156,979.30/216,620.13 = 88,997.62/x
  3. Step 3: Cross multiply
    156,979.30x = 216,620.13 × 88,997.62
  4. Step 4: Simplify right side
    156,979.30x = 19,278,676,014.09
  5. Step 5: Solve for x
    x = 19,278,676,014.09/156,979.30
  6. Step 6: Final answer
    x = 122,810.31

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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.