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Finding the Fourth Proportional to 140,697.50, 194,181.10 and 80,254.32

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Solution

The fourth proportional to 140,697.50, 194,181.10 and 80,254.32 is: 110,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,697.50 : 194,181.10 = 80,254.32 : x
  2. Step 2: Convert to fraction form
    140,697.50/194,181.10 = 80,254.32/x
  3. Step 3: Cross multiply
    140,697.50x = 194,181.10 × 80,254.32
  4. Step 4: Simplify right side
    140,697.50x = 15,583,872,137.35
  5. Step 5: Solve for x
    x = 15,583,872,137.35/140,697.50
  6. Step 6: Final answer
    x = 110,761.54

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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.