Home / 134,575.20-185,671.74-80,872.20

Finding the Fourth Proportional to 134,575.20, 185,671.74 and 80,872.20

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Solution

The fourth proportional to 134,575.20, 185,671.74 and 80,872.20 is: 111,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,575.20 : 185,671.74 = 80,872.20 : x
  2. Step 2: Convert to fraction form
    134,575.20/185,671.74 = 80,872.20/x
  3. Step 3: Cross multiply
    134,575.20x = 185,671.74 × 80,872.20
  4. Step 4: Simplify right side
    134,575.20x = 15,015,682,091.63
  5. Step 5: Solve for x
    x = 15,015,682,091.63/134,575.20
  6. Step 6: Final answer
    x = 111,578.37

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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.