Home / 113,419.83-170,121.54-54,239.61

Finding the Fourth Proportional to 113,419.83, 170,121.54 and 54,239.61

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Solution

The fourth proportional to 113,419.83, 170,121.54 and 54,239.61 is: 81,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,419.83 : 170,121.54 = 54,239.61 : x
  2. Step 2: Convert to fraction form
    113,419.83/170,121.54 = 54,239.61/x
  3. Step 3: Cross multiply
    113,419.83x = 170,121.54 × 54,239.61
  4. Step 4: Simplify right side
    113,419.83x = 9,227,324,860.39
  5. Step 5: Solve for x
    x = 9,227,324,860.39/113,419.83
  6. Step 6: Final answer
    x = 81,355.48

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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.