Home / 262,143.20-392,955.60-104,160.80

Finding the Fourth Proportional to 262,143.20, 392,955.60 and 104,160.80

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Solution

The fourth proportional to 262,143.20, 392,955.60 and 104,160.80 is: 156,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,143.20 : 392,955.60 = 104,160.80 : x
  2. Step 2: Convert to fraction form
    262,143.20/392,955.60 = 104,160.80/x
  3. Step 3: Cross multiply
    262,143.20x = 392,955.60 × 104,160.80
  4. Step 4: Simplify right side
    262,143.20x = 40,930,569,660.48
  5. Step 5: Solve for x
    x = 40,930,569,660.48/262,143.20
  6. Step 6: Final answer
    x = 156,138.21

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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.