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Finding the Fourth Proportional to 101,818.14, 140,010.78 and 88,366.03

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Solution

The fourth proportional to 101,818.14, 140,010.78 and 88,366.03 is: 121,512.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,818.14 : 140,010.78 = 88,366.03 : x
  2. Step 2: Convert to fraction form
    101,818.14/140,010.78 = 88,366.03/x
  3. Step 3: Cross multiply
    101,818.14x = 140,010.78 × 88,366.03
  4. Step 4: Simplify right side
    101,818.14x = 12,372,196,785.80
  5. Step 5: Solve for x
    x = 12,372,196,785.80/101,818.14
  6. Step 6: Final answer
    x = 121,512.70

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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.