Home / 212,806.20-318,950.10-94,351.80

Finding the Fourth Proportional to 212,806.20, 318,950.10 and 94,351.80

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Solution

The fourth proportional to 212,806.20, 318,950.10 and 94,351.80 is: 141,412.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,806.20 : 318,950.10 = 94,351.80 : x
  2. Step 2: Convert to fraction form
    212,806.20/318,950.10 = 94,351.80/x
  3. Step 3: Cross multiply
    212,806.20x = 318,950.10 × 94,351.80
  4. Step 4: Simplify right side
    212,806.20x = 30,093,516,045.18
  5. Step 5: Solve for x
    x = 30,093,516,045.18/212,806.20
  6. Step 6: Final answer
    x = 141,412.78

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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.