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Finding the Fourth Proportional to 180,518.88, 270,933.84 and 87,103.20

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Solution

The fourth proportional to 180,518.88, 270,933.84 and 87,103.20 is: 130,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,518.88 : 270,933.84 = 87,103.20 : x
  2. Step 2: Convert to fraction form
    180,518.88/270,933.84 = 87,103.20/x
  3. Step 3: Cross multiply
    180,518.88x = 270,933.84 × 87,103.20
  4. Step 4: Simplify right side
    180,518.88x = 23,599,204,452.29
  5. Step 5: Solve for x
    x = 23,599,204,452.29/180,518.88
  6. Step 6: Final answer
    x = 130,729.84

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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.