Home / 156,872.73-216,486.04-85,252.75

Finding the Fourth Proportional to 156,872.73, 216,486.04 and 85,252.75

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Solution

The fourth proportional to 156,872.73, 216,486.04 and 85,252.75 is: 117,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,872.73 : 216,486.04 = 85,252.75 : x
  2. Step 2: Convert to fraction form
    156,872.73/216,486.04 = 85,252.75/x
  3. Step 3: Cross multiply
    156,872.73x = 216,486.04 × 85,252.75
  4. Step 4: Simplify right side
    156,872.73x = 18,456,031,109.62
  5. Step 5: Solve for x
    x = 18,456,031,109.62/156,872.73
  6. Step 6: Final answer
    x = 117,649.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.