Home / 133,065.20-199,622.10-54,187.40

Finding the Fourth Proportional to 133,065.20, 199,622.10 and 54,187.40

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Solution

The fourth proportional to 133,065.20, 199,622.10 and 54,187.40 is: 81,291.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,065.20 : 199,622.10 = 54,187.40 : x
  2. Step 2: Convert to fraction form
    133,065.20/199,622.10 = 54,187.40/x
  3. Step 3: Cross multiply
    133,065.20x = 199,622.10 × 54,187.40
  4. Step 4: Simplify right side
    133,065.20x = 10,817,002,581.54
  5. Step 5: Solve for x
    x = 10,817,002,581.54/133,065.20
  6. Step 6: Final answer
    x = 81,291.00

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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.