Home / 133,040.20-199,560.30-54,113.80

Finding the Fourth Proportional to 133,040.20, 199,560.30 and 54,113.80

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Solution

The fourth proportional to 133,040.20, 199,560.30 and 54,113.80 is: 81,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,040.20 : 199,560.30 = 54,113.80 : x
  2. Step 2: Convert to fraction form
    133,040.20/199,560.30 = 54,113.80/x
  3. Step 3: Cross multiply
    133,040.20x = 199,560.30 × 54,113.80
  4. Step 4: Simplify right side
    133,040.20x = 10,798,966,162.14
  5. Step 5: Solve for x
    x = 10,798,966,162.14/133,040.20
  6. Step 6: Final answer
    x = 81,170.70

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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.