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Finding the Fourth Proportional to 132,866.25, 199,332.18 and 39,372

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Solution

The fourth proportional to 132,866.25, 199,332.18 and 39,372 is: 59,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,866.25 : 199,332.18 = 39,372 : x
  2. Step 2: Convert to fraction form
    132,866.25/199,332.18 = 39,372/x
  3. Step 3: Cross multiply
    132,866.25x = 199,332.18 × 39,372
  4. Step 4: Simplify right side
    132,866.25x = 7,848,106,590.96
  5. Step 5: Solve for x
    x = 7,848,106,590.96/132,866.25
  6. Step 6: Final answer
    x = 59,067.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.