Home / 106,338.12-159,507.21-31,452.42

Finding the Fourth Proportional to 106,338.12, 159,507.21 and 31,452.42

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Solution

The fourth proportional to 106,338.12, 159,507.21 and 31,452.42 is: 47,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,338.12 : 159,507.21 = 31,452.42 : x
  2. Step 2: Convert to fraction form
    106,338.12/159,507.21 = 31,452.42/x
  3. Step 3: Cross multiply
    106,338.12x = 159,507.21 × 31,452.42
  4. Step 4: Simplify right side
    106,338.12x = 5,016,887,761.95
  5. Step 5: Solve for x
    x = 5,016,887,761.95/106,338.12
  6. Step 6: Final answer
    x = 47,178.64

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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.