Home / 156,979.92-216,627.71-89,003.17

Finding the Fourth Proportional to 156,979.92, 216,627.71 and 89,003.17

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Solution

The fourth proportional to 156,979.92, 216,627.71 and 89,003.17 is: 122,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.92 : 216,627.71 = 89,003.17 : x
  2. Step 2: Convert to fraction form
    156,979.92/216,627.71 = 89,003.17/x
  3. Step 3: Cross multiply
    156,979.92x = 216,627.71 × 89,003.17
  4. Step 4: Simplify right side
    156,979.92x = 19,280,552,899.84
  5. Step 5: Solve for x
    x = 19,280,552,899.84/156,979.92
  6. Step 6: Final answer
    x = 122,821.78

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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.