Home / 139,190.20-192,083.04-75,527.98

Finding the Fourth Proportional to 139,190.20, 192,083.04 and 75,527.98

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Solution

The fourth proportional to 139,190.20, 192,083.04 and 75,527.98 is: 104,228.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,190.20 : 192,083.04 = 75,527.98 : x
  2. Step 2: Convert to fraction form
    139,190.20/192,083.04 = 75,527.98/x
  3. Step 3: Cross multiply
    139,190.20x = 192,083.04 × 75,527.98
  4. Step 4: Simplify right side
    139,190.20x = 14,507,644,003.46
  5. Step 5: Solve for x
    x = 14,507,644,003.46/139,190.20
  6. Step 6: Final answer
    x = 104,228.92

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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.