Home / 159,265.12-219,311.84-155,729.20

Finding the Fourth Proportional to 159,265.12, 219,311.84 and 155,729.20

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Solution

The fourth proportional to 159,265.12, 219,311.84 and 155,729.20 is: 214,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,265.12 : 219,311.84 = 155,729.20 : x
  2. Step 2: Convert to fraction form
    159,265.12/219,311.84 = 155,729.20/x
  3. Step 3: Cross multiply
    159,265.12x = 219,311.84 × 155,729.20
  4. Step 4: Simplify right side
    159,265.12x = 34,153,257,393.73
  5. Step 5: Solve for x
    x = 34,153,257,393.73/159,265.12
  6. Step 6: Final answer
    x = 214,442.79

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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.