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Finding the Fourth Proportional to 134,393, 185,458.40 and 73,963.61

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Solution

The fourth proportional to 134,393, 185,458.40 and 73,963.61 is: 102,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,393 : 185,458.40 = 73,963.61 : x
  2. Step 2: Convert to fraction form
    134,393/185,458.40 = 73,963.61/x
  3. Step 3: Cross multiply
    134,393x = 185,458.40 × 73,963.61
  4. Step 4: Simplify right side
    134,393x = 13,717,172,768.82
  5. Step 5: Solve for x
    x = 13,717,172,768.82/134,393
  6. Step 6: Final answer
    x = 102,067.61

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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.