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Finding the Fourth Proportional to 140,979.39, 211,508.13 and 65,101.11

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Solution

The fourth proportional to 140,979.39, 211,508.13 and 65,101.11 is: 97,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,979.39 : 211,508.13 = 65,101.11 : x
  2. Step 2: Convert to fraction form
    140,979.39/211,508.13 = 65,101.11/x
  3. Step 3: Cross multiply
    140,979.39x = 211,508.13 × 65,101.11
  4. Step 4: Simplify right side
    140,979.39x = 13,769,414,037.02
  5. Step 5: Solve for x
    x = 13,769,414,037.02/140,979.39
  6. Step 6: Final answer
    x = 97,669.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.