Home / 111,278.21-166,947.68-40,209.21

Finding the Fourth Proportional to 111,278.21, 166,947.68 and 40,209.21

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Solution

The fourth proportional to 111,278.21, 166,947.68 and 40,209.21 is: 60,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,278.21 : 166,947.68 = 40,209.21 : x
  2. Step 2: Convert to fraction form
    111,278.21/166,947.68 = 40,209.21/x
  3. Step 3: Cross multiply
    111,278.21x = 166,947.68 × 40,209.21
  4. Step 4: Simplify right side
    111,278.21x = 6,712,834,424.66
  5. Step 5: Solve for x
    x = 6,712,834,424.66/111,278.21
  6. Step 6: Final answer
    x = 60,324.79

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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.