Home / 140,750.19-194,238.41-80,319.63

Finding the Fourth Proportional to 140,750.19, 194,238.41 and 80,319.63

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Solution

The fourth proportional to 140,750.19, 194,238.41 and 80,319.63 is: 110,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,750.19 : 194,238.41 = 80,319.63 : x
  2. Step 2: Convert to fraction form
    140,750.19/194,238.41 = 80,319.63/x
  3. Step 3: Cross multiply
    140,750.19x = 194,238.41 × 80,319.63
  4. Step 4: Simplify right side
    140,750.19x = 15,601,155,910.90
  5. Step 5: Solve for x
    x = 15,601,155,910.90/140,750.19
  6. Step 6: Final answer
    x = 110,842.87

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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.