Home / 133,065.70-199,598.55-54,139.30

Finding the Fourth Proportional to 133,065.70, 199,598.55 and 54,139.30

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Solution

The fourth proportional to 133,065.70, 199,598.55 and 54,139.30 is: 81,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065.70 : 199,598.55 = 54,139.30 : x
  2. Step 2: Convert to fraction form
    133,065.70/199,598.55 = 54,139.30/x
  3. Step 3: Cross multiply
    133,065.70x = 199,598.55 × 54,139.30
  4. Step 4: Simplify right side
    133,065.70x = 10,806,125,778.02
  5. Step 5: Solve for x
    x = 10,806,125,778.02/133,065.70
  6. Step 6: Final answer
    x = 81,208.95

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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.