Home / 140,979.32-194,561.76-80,548.67

Finding the Fourth Proportional to 140,979.32, 194,561.76 and 80,548.67

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Solution

The fourth proportional to 140,979.32, 194,561.76 and 80,548.67 is: 111,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,979.32 : 194,561.76 = 80,548.67 : x
  2. Step 2: Convert to fraction form
    140,979.32/194,561.76 = 80,548.67/x
  3. Step 3: Cross multiply
    140,979.32x = 194,561.76 × 80,548.67
  4. Step 4: Simplify right side
    140,979.32x = 15,671,691,000.86
  5. Step 5: Solve for x
    x = 15,671,691,000.86/140,979.32
  6. Step 6: Final answer
    x = 111,163.05

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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.