Home / 154,377.20-213,082.44-90,735.44

Finding the Fourth Proportional to 154,377.20, 213,082.44 and 90,735.44

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Solution

The fourth proportional to 154,377.20, 213,082.44 and 90,735.44 is: 125,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,377.20 : 213,082.44 = 90,735.44 : x
  2. Step 2: Convert to fraction form
    154,377.20/213,082.44 = 90,735.44/x
  3. Step 3: Cross multiply
    154,377.20x = 213,082.44 × 90,735.44
  4. Step 4: Simplify right side
    154,377.20x = 19,334,128,949.67
  5. Step 5: Solve for x
    x = 19,334,128,949.67/154,377.20
  6. Step 6: Final answer
    x = 125,239.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.