Home / 212,324.25-318,535.59-72,082.88

Finding the Fourth Proportional to 212,324.25, 318,535.59 and 72,082.88

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Solution

The fourth proportional to 212,324.25, 318,535.59 and 72,082.88 is: 108,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,324.25 : 318,535.59 = 72,082.88 : x
  2. Step 2: Convert to fraction form
    212,324.25/318,535.59 = 72,082.88/x
  3. Step 3: Cross multiply
    212,324.25x = 318,535.59 × 72,082.88
  4. Step 4: Simplify right side
    212,324.25x = 22,960,962,709.70
  5. Step 5: Solve for x
    x = 22,960,962,709.70/212,324.25
  6. Step 6: Final answer
    x = 108,141.03

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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.