Home / 212,104.11-318,167.91-69,943.65

Finding the Fourth Proportional to 212,104.11, 318,167.91 and 69,943.65

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Solution

The fourth proportional to 212,104.11, 318,167.91 and 69,943.65 is: 104,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,104.11 : 318,167.91 = 69,943.65 : x
  2. Step 2: Convert to fraction form
    212,104.11/318,167.91 = 69,943.65/x
  3. Step 3: Cross multiply
    212,104.11x = 318,167.91 × 69,943.65
  4. Step 4: Simplify right side
    212,104.11x = 22,253,824,938.27
  5. Step 5: Solve for x
    x = 22,253,824,938.27/212,104.11
  6. Step 6: Final answer
    x = 104,919.35

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1.5x scale

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.