Home / 133,091.13-199,561.36-54,112.49

Finding the Fourth Proportional to 133,091.13, 199,561.36 and 54,112.49

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Solution

The fourth proportional to 133,091.13, 199,561.36 and 54,112.49 is: 81,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091.13 : 199,561.36 = 54,112.49 : x
  2. Step 2: Convert to fraction form
    133,091.13/199,561.36 = 54,112.49/x
  3. Step 3: Cross multiply
    133,091.13x = 199,561.36 × 54,112.49
  4. Step 4: Simplify right side
    133,091.13x = 10,798,762,097.39
  5. Step 5: Solve for x
    x = 10,798,762,097.39/133,091.13
  6. Step 6: Final answer
    x = 81,138.11

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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.