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Finding the Fourth Proportional to 170,149.44, 255,276.48 and 87,101.76

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Solution

The fourth proportional to 170,149.44, 255,276.48 and 87,101.76 is: 130,679.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,149.44 : 255,276.48 = 87,101.76 : x
  2. Step 2: Convert to fraction form
    170,149.44/255,276.48 = 87,101.76/x
  3. Step 3: Cross multiply
    170,149.44x = 255,276.48 × 87,101.76
  4. Step 4: Simplify right side
    170,149.44x = 22,235,030,694.60
  5. Step 5: Solve for x
    x = 22,235,030,694.60/170,149.44
  6. Step 6: Final answer
    x = 130,679.42

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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.