Home / 133,069.20-199,628.10-54,191.40

Finding the Fourth Proportional to 133,069.20, 199,628.10 and 54,191.40

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Solution

The fourth proportional to 133,069.20, 199,628.10 and 54,191.40 is: 81,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,069.20 : 199,628.10 = 54,191.40 : x
  2. Step 2: Convert to fraction form
    133,069.20/199,628.10 = 54,191.40/x
  3. Step 3: Cross multiply
    133,069.20x = 199,628.10 × 54,191.40
  4. Step 4: Simplify right side
    133,069.20x = 10,818,126,218.34
  5. Step 5: Solve for x
    x = 10,818,126,218.34/133,069.20
  6. Step 6: Final answer
    x = 81,297.00

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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.