Home / 212,107.65-318,093.85-69,926.43

Finding the Fourth Proportional to 212,107.65, 318,093.85 and 69,926.43

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Solution

The fourth proportional to 212,107.65, 318,093.85 and 69,926.43 is: 104,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107.65 : 318,093.85 = 69,926.43 : x
  2. Step 2: Convert to fraction form
    212,107.65/318,093.85 = 69,926.43/x
  3. Step 3: Cross multiply
    212,107.65x = 318,093.85 × 69,926.43
  4. Step 4: Simplify right side
    212,107.65x = 22,243,167,335.46
  5. Step 5: Solve for x
    x = 22,243,167,335.46/212,107.65
  6. Step 6: Final answer
    x = 104,867.35

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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.