Home / 156,769.89-216,344.76-88,785.17

Finding the Fourth Proportional to 156,769.89, 216,344.76 and 88,785.17

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Solution

The fourth proportional to 156,769.89, 216,344.76 and 88,785.17 is: 122,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.89 : 216,344.76 = 88,785.17 : x
  2. Step 2: Convert to fraction form
    156,769.89/216,344.76 = 88,785.17/x
  3. Step 3: Cross multiply
    156,769.89x = 216,344.76 × 88,785.17
  4. Step 4: Simplify right side
    156,769.89x = 19,208,205,851.28
  5. Step 5: Solve for x
    x = 19,208,205,851.28/156,769.89
  6. Step 6: Final answer
    x = 122,524.84

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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.