Home / 156,843.38-235,132.78-68,029.98

Finding the Fourth Proportional to 156,843.38, 235,132.78 and 68,029.98

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Solution

The fourth proportional to 156,843.38, 235,132.78 and 68,029.98 is: 101,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,843.38 : 235,132.78 = 68,029.98 : x
  2. Step 2: Convert to fraction form
    156,843.38/235,132.78 = 68,029.98/x
  3. Step 3: Cross multiply
    156,843.38x = 235,132.78 × 68,029.98
  4. Step 4: Simplify right side
    156,843.38x = 15,996,078,320.74
  5. Step 5: Solve for x
    x = 15,996,078,320.74/156,843.38
  6. Step 6: Final answer
    x = 101,987.59

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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.