Home / 156,974.29-235,456.10-68,227.79

Finding the Fourth Proportional to 156,974.29, 235,456.10 and 68,227.79

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Solution

The fourth proportional to 156,974.29, 235,456.10 and 68,227.79 is: 102,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.29 : 235,456.10 = 68,227.79 : x
  2. Step 2: Convert to fraction form
    156,974.29/235,456.10 = 68,227.79/x
  3. Step 3: Cross multiply
    156,974.29x = 235,456.10 × 68,227.79
  4. Step 4: Simplify right side
    156,974.29x = 16,064,648,082.45
  5. Step 5: Solve for x
    x = 16,064,648,082.45/156,974.29
  6. Step 6: Final answer
    x = 102,339.36

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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.