Home / 110,760.10-166,140.15-68,769.70

Finding the Fourth Proportional to 110,760.10, 166,140.15 and 68,769.70

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Solution

The fourth proportional to 110,760.10, 166,140.15 and 68,769.70 is: 103,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,760.10 : 166,140.15 = 68,769.70 : x
  2. Step 2: Convert to fraction form
    110,760.10/166,140.15 = 68,769.70/x
  3. Step 3: Cross multiply
    110,760.10x = 166,140.15 × 68,769.70
  4. Step 4: Simplify right side
    110,760.10x = 11,425,408,273.46
  5. Step 5: Solve for x
    x = 11,425,408,273.46/110,760.10
  6. Step 6: Final answer
    x = 103,154.55

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1.5x scale

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.