Home / 156,979.80-216,620.82-88,998.12

Finding the Fourth Proportional to 156,979.80, 216,620.82 and 88,998.12

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Solution

The fourth proportional to 156,979.80, 216,620.82 and 88,998.12 is: 122,811.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.80 : 216,620.82 = 88,998.12 : x
  2. Step 2: Convert to fraction form
    156,979.80/216,620.82 = 88,998.12/x
  3. Step 3: Cross multiply
    156,979.80x = 216,620.82 × 88,998.12
  4. Step 4: Simplify right side
    156,979.80x = 19,278,845,732.86
  5. Step 5: Solve for x
    x = 19,278,845,732.86/156,979.80
  6. Step 6: Final answer
    x = 122,811.00

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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.