Home / 204,456.50-306,747.51-104,686.78

Finding the Fourth Proportional to 204,456.50, 306,747.51 and 104,686.78

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Solution

The fourth proportional to 204,456.50, 306,747.51 and 104,686.78 is: 157,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,456.50 : 306,747.51 = 104,686.78 : x
  2. Step 2: Convert to fraction form
    204,456.50/306,747.51 = 104,686.78/x
  3. Step 3: Cross multiply
    204,456.50x = 306,747.51 × 104,686.78
  4. Step 4: Simplify right side
    204,456.50x = 32,112,408,510.63
  5. Step 5: Solve for x
    x = 32,112,408,510.63/204,456.50
  6. Step 6: Final answer
    x = 157,062.30

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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.