Home / 212,455.74-318,880.44-107,348.52

Finding the Fourth Proportional to 212,455.74, 318,880.44 and 107,348.52

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Solution

The fourth proportional to 212,455.74, 318,880.44 and 107,348.52 is: 161,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,455.74 : 318,880.44 = 107,348.52 : x
  2. Step 2: Convert to fraction form
    212,455.74/318,880.44 = 107,348.52/x
  3. Step 3: Cross multiply
    212,455.74x = 318,880.44 × 107,348.52
  4. Step 4: Simplify right side
    212,455.74x = 34,231,343,290.95
  5. Step 5: Solve for x
    x = 34,231,343,290.95/212,455.74
  6. Step 6: Final answer
    x = 161,122.23

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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.