Home / 73,153.12-109,729.68-17,749.12

Finding the Fourth Proportional to 73,153.12, 109,729.68 and 17,749.12

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Solution

The fourth proportional to 73,153.12, 109,729.68 and 17,749.12 is: 26,623.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,153.12 : 109,729.68 = 17,749.12 : x
  2. Step 2: Convert to fraction form
    73,153.12/109,729.68 = 17,749.12/x
  3. Step 3: Cross multiply
    73,153.12x = 109,729.68 × 17,749.12
  4. Step 4: Simplify right side
    73,153.12x = 1,947,605,257.88
  5. Step 5: Solve for x
    x = 1,947,605,257.88/73,153.12
  6. Step 6: Final answer
    x = 26,623.68

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Similar ratio
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1.5x scale

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.