Home / 204,040.14-306,011.61-85,713.78

Finding the Fourth Proportional to 204,040.14, 306,011.61 and 85,713.78

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Solution

The fourth proportional to 204,040.14, 306,011.61 and 85,713.78 is: 128,550.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,040.14 : 306,011.61 = 85,713.78 : x
  2. Step 2: Convert to fraction form
    204,040.14/306,011.61 = 85,713.78/x
  3. Step 3: Cross multiply
    204,040.14x = 306,011.61 × 85,713.78
  4. Step 4: Simplify right side
    204,040.14x = 26,229,411,816.99
  5. Step 5: Solve for x
    x = 26,229,411,816.99/204,040.14
  6. Step 6: Final answer
    x = 128,550.25

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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.