Home / 140,074.49-193,311.94-79,650.76

Finding the Fourth Proportional to 140,074.49, 193,311.94 and 79,650.76

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Solution

The fourth proportional to 140,074.49, 193,311.94 and 79,650.76 is: 109,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,074.49 : 193,311.94 = 79,650.76 : x
  2. Step 2: Convert to fraction form
    140,074.49/193,311.94 = 79,650.76/x
  3. Step 3: Cross multiply
    140,074.49x = 193,311.94 × 79,650.76
  4. Step 4: Simplify right side
    140,074.49x = 15,397,442,938.07
  5. Step 5: Solve for x
    x = 15,397,442,938.07/140,074.49
  6. Step 6: Final answer
    x = 109,923.25

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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.