Home / 134,680.42-185,857.94-74,253.61

Finding the Fourth Proportional to 134,680.42, 185,857.94 and 74,253.61

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Solution

The fourth proportional to 134,680.42, 185,857.94 and 74,253.61 is: 102,469.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,680.42 : 185,857.94 = 74,253.61 : x
  2. Step 2: Convert to fraction form
    134,680.42/185,857.94 = 74,253.61/x
  3. Step 3: Cross multiply
    134,680.42x = 185,857.94 × 74,253.61
  4. Step 4: Simplify right side
    134,680.42x = 13,800,623,410.12
  5. Step 5: Solve for x
    x = 13,800,623,410.12/134,680.42
  6. Step 6: Final answer
    x = 102,469.41

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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.