Home / 111,112.40-166,721.66-51,939.48

Finding the Fourth Proportional to 111,112.40, 166,721.66 and 51,939.48

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Solution

The fourth proportional to 111,112.40, 166,721.66 and 51,939.48 is: 77,934.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,112.40 : 166,721.66 = 51,939.48 : x
  2. Step 2: Convert to fraction form
    111,112.40/166,721.66 = 51,939.48/x
  3. Step 3: Cross multiply
    111,112.40x = 166,721.66 × 51,939.48
  4. Step 4: Simplify right side
    111,112.40x = 8,659,436,325.14
  5. Step 5: Solve for x
    x = 8,659,436,325.14/111,112.40
  6. Step 6: Final answer
    x = 77,934.02

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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.