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Finding the Fourth Proportional to 140,528.50, 193,924.50 and 80,118.60

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Solution

The fourth proportional to 140,528.50, 193,924.50 and 80,118.60 is: 110,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.50 : 193,924.50 = 80,118.60 : x
  2. Step 2: Convert to fraction form
    140,528.50/193,924.50 = 80,118.60/x
  3. Step 3: Cross multiply
    140,528.50x = 193,924.50 × 80,118.60
  4. Step 4: Simplify right side
    140,528.50x = 15,536,959,508.86
  5. Step 5: Solve for x
    x = 15,536,959,508.86/140,528.50
  6. Step 6: Final answer
    x = 110,560.91

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1.5x scale

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.