Home / 140,400.27-193,729.96-79,972.09

Finding the Fourth Proportional to 140,400.27, 193,729.96 and 79,972.09

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Solution

The fourth proportional to 140,400.27, 193,729.96 and 79,972.09 is: 110,348.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,400.27 : 193,729.96 = 79,972.09 : x
  2. Step 2: Convert to fraction form
    140,400.27/193,729.96 = 79,972.09/x
  3. Step 3: Cross multiply
    140,400.27x = 193,729.96 × 79,972.09
  4. Step 4: Simplify right side
    140,400.27x = 15,492,989,796.82
  5. Step 5: Solve for x
    x = 15,492,989,796.82/140,400.27
  6. Step 6: Final answer
    x = 110,348.72

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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.