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Finding the Fourth Proportional to 134,630.82, 185,791.84 and 74,201.58

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Solution

The fourth proportional to 134,630.82, 185,791.84 and 74,201.58 is: 102,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,630.82 : 185,791.84 = 74,201.58 : x
  2. Step 2: Convert to fraction form
    134,630.82/185,791.84 = 74,201.58/x
  3. Step 3: Cross multiply
    134,630.82x = 185,791.84 × 74,201.58
  4. Step 4: Simplify right side
    134,630.82x = 13,786,048,079.11
  5. Step 5: Solve for x
    x = 13,786,048,079.11/134,630.82
  6. Step 6: Final answer
    x = 102,398.90

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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.