Home / 212,290.66-318,425.56-79,160.50

Finding the Fourth Proportional to 212,290.66, 318,425.56 and 79,160.50

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Solution

The fourth proportional to 212,290.66, 318,425.56 and 79,160.50 is: 118,736.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,290.66 : 318,425.56 = 79,160.50 : x
  2. Step 2: Convert to fraction form
    212,290.66/318,425.56 = 79,160.50/x
  3. Step 3: Cross multiply
    212,290.66x = 318,425.56 × 79,160.50
  4. Step 4: Simplify right side
    212,290.66x = 25,206,726,542.38
  5. Step 5: Solve for x
    x = 25,206,726,542.38/212,290.66
  6. Step 6: Final answer
    x = 118,736.86

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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.