Home / 95,506.20-143,259.30-86,320.80

Finding the Fourth Proportional to 95,506.20, 143,259.30 and 86,320.80

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Solution

The fourth proportional to 95,506.20, 143,259.30 and 86,320.80 is: 129,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,506.20 : 143,259.30 = 86,320.80 : x
  2. Step 2: Convert to fraction form
    95,506.20/143,259.30 = 86,320.80/x
  3. Step 3: Cross multiply
    95,506.20x = 143,259.30 × 86,320.80
  4. Step 4: Simplify right side
    95,506.20x = 12,366,257,383.44
  5. Step 5: Solve for x
    x = 12,366,257,383.44/95,506.20
  6. Step 6: Final answer
    x = 129,481.20

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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.