Home / 212,149.98-318,046.23-92,116.62

Finding the Fourth Proportional to 212,149.98, 318,046.23 and 92,116.62

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Solution

The fourth proportional to 212,149.98, 318,046.23 and 92,116.62 is: 138,097.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,149.98 : 318,046.23 = 92,116.62 : x
  2. Step 2: Convert to fraction form
    212,149.98/318,046.23 = 92,116.62/x
  3. Step 3: Cross multiply
    212,149.98x = 318,046.23 × 92,116.62
  4. Step 4: Simplify right side
    212,149.98x = 29,297,343,711.34
  5. Step 5: Solve for x
    x = 29,297,343,711.34/212,149.98
  6. Step 6: Final answer
    x = 138,097.32

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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.