Home / 156,248.78-234,402.33-51,141.56

Finding the Fourth Proportional to 156,248.78, 234,402.33 and 51,141.56

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Solution

The fourth proportional to 156,248.78, 234,402.33 and 51,141.56 is: 76,721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,248.78 : 234,402.33 = 51,141.56 : x
  2. Step 2: Convert to fraction form
    156,248.78/234,402.33 = 51,141.56/x
  3. Step 3: Cross multiply
    156,248.78x = 234,402.33 × 51,141.56
  4. Step 4: Simplify right side
    156,248.78x = 11,987,700,823.83
  5. Step 5: Solve for x
    x = 11,987,700,823.83/156,248.78
  6. Step 6: Final answer
    x = 76,721.88

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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.