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Finding the Fourth Proportional to 139,512.08, 192,525.71 and 75,849.89

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Solution

The fourth proportional to 139,512.08, 192,525.71 and 75,849.89 is: 104,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,512.08 : 192,525.71 = 75,849.89 : x
  2. Step 2: Convert to fraction form
    139,512.08/192,525.71 = 75,849.89/x
  3. Step 3: Cross multiply
    139,512.08x = 192,525.71 × 75,849.89
  4. Step 4: Simplify right side
    139,512.08x = 14,603,052,583.79
  5. Step 5: Solve for x
    x = 14,603,052,583.79/139,512.08
  6. Step 6: Final answer
    x = 104,672.31

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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.