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Finding the Fourth Proportional to 139,214.22, 192,115.72 and 75,552

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Solution

The fourth proportional to 139,214.22, 192,115.72 and 75,552 is: 104,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,214.22 : 192,115.72 = 75,552 : x
  2. Step 2: Convert to fraction form
    139,214.22/192,115.72 = 75,552/x
  3. Step 3: Cross multiply
    139,214.22x = 192,115.72 × 75,552
  4. Step 4: Simplify right side
    139,214.22x = 14,514,726,877.44
  5. Step 5: Solve for x
    x = 14,514,726,877.44/139,214.22
  6. Step 6: Final answer
    x = 104,261.81

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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.