Home / 140,642.10-194,076.36-80,215.32

Finding the Fourth Proportional to 140,642.10, 194,076.36 and 80,215.32

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Solution

The fourth proportional to 140,642.10, 194,076.36 and 80,215.32 is: 110,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,642.10 : 194,076.36 = 80,215.32 : x
  2. Step 2: Convert to fraction form
    140,642.10/194,076.36 = 80,215.32/x
  3. Step 3: Cross multiply
    140,642.10x = 194,076.36 × 80,215.32
  4. Step 4: Simplify right side
    140,642.10x = 15,567,897,321.84
  5. Step 5: Solve for x
    x = 15,567,897,321.84/140,642.10
  6. Step 6: Final answer
    x = 110,691.59

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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.