Home / 156,844.59-235,134.60-68,031.21

Finding the Fourth Proportional to 156,844.59, 235,134.60 and 68,031.21

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Solution

The fourth proportional to 156,844.59, 235,134.60 and 68,031.21 is: 101,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,844.59 : 235,134.60 = 68,031.21 : x
  2. Step 2: Convert to fraction form
    156,844.59/235,134.60 = 68,031.21/x
  3. Step 3: Cross multiply
    156,844.59x = 235,134.60 × 68,031.21
  4. Step 4: Simplify right side
    156,844.59x = 15,996,491,350.87
  5. Step 5: Solve for x
    x = 15,996,491,350.87/156,844.59
  6. Step 6: Final answer
    x = 101,989.44

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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.