Home / 212,164.11-318,246.57-54,393.12

Finding the Fourth Proportional to 212,164.11, 318,246.57 and 54,393.12

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Solution

The fourth proportional to 212,164.11, 318,246.57 and 54,393.12 is: 81,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,164.11 : 318,246.57 = 54,393.12 : x
  2. Step 2: Convert to fraction form
    212,164.11/318,246.57 = 54,393.12/x
  3. Step 3: Cross multiply
    212,164.11x = 318,246.57 × 54,393.12
  4. Step 4: Simplify right side
    212,164.11x = 17,310,423,871.60
  5. Step 5: Solve for x
    x = 17,310,423,871.60/212,164.11
  6. Step 6: Final answer
    x = 81,589.78

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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.