Home / 110,306.88-165,435.36-31,419.36

Finding the Fourth Proportional to 110,306.88, 165,435.36 and 31,419.36

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Solution

The fourth proportional to 110,306.88, 165,435.36 and 31,419.36 is: 47,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,306.88 : 165,435.36 = 31,419.36 : x
  2. Step 2: Convert to fraction form
    110,306.88/165,435.36 = 31,419.36/x
  3. Step 3: Cross multiply
    110,306.88x = 165,435.36 × 31,419.36
  4. Step 4: Simplify right side
    110,306.88x = 5,197,873,132.57
  5. Step 5: Solve for x
    x = 5,197,873,132.57/110,306.88
  6. Step 6: Final answer
    x = 47,121.93

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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.