Home / 142,839.36-214,288.92-54,090.84

Finding the Fourth Proportional to 142,839.36, 214,288.92 and 54,090.84

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Solution

The fourth proportional to 142,839.36, 214,288.92 and 54,090.84 is: 81,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,839.36 : 214,288.92 = 54,090.84 : x
  2. Step 2: Convert to fraction form
    142,839.36/214,288.92 = 54,090.84/x
  3. Step 3: Cross multiply
    142,839.36x = 214,288.92 × 54,090.84
  4. Step 4: Simplify right side
    142,839.36x = 11,591,067,685.49
  5. Step 5: Solve for x
    x = 11,591,067,685.49/142,839.36
  6. Step 6: Final answer
    x = 81,147.58

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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.