Home / 140,839.29-211,116.78-88,285.68

Finding the Fourth Proportional to 140,839.29, 211,116.78 and 88,285.68

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Solution

The fourth proportional to 140,839.29, 211,116.78 and 88,285.68 is: 132,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,839.29 : 211,116.78 = 88,285.68 : x
  2. Step 2: Convert to fraction form
    140,839.29/211,116.78 = 88,285.68/x
  3. Step 3: Cross multiply
    140,839.29x = 211,116.78 × 88,285.68
  4. Step 4: Simplify right side
    140,839.29x = 18,638,588,481.71
  5. Step 5: Solve for x
    x = 18,638,588,481.71/140,839.29
  6. Step 6: Final answer
    x = 132,339.41

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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.