Home / 113,359.20-170,103.60-43,288.80

Finding the Fourth Proportional to 113,359.20, 170,103.60 and 43,288.80

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Solution

The fourth proportional to 113,359.20, 170,103.60 and 43,288.80 is: 64,957.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,359.20 : 170,103.60 = 43,288.80 : x
  2. Step 2: Convert to fraction form
    113,359.20/170,103.60 = 43,288.80/x
  3. Step 3: Cross multiply
    113,359.20x = 170,103.60 × 43,288.80
  4. Step 4: Simplify right side
    113,359.20x = 7,363,580,719.68
  5. Step 5: Solve for x
    x = 7,363,580,719.68/113,359.20
  6. Step 6: Final answer
    x = 64,957.95

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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.