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Finding the Fourth Proportional to 139,259.46, 192,177 and 75,595.98

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Solution

The fourth proportional to 139,259.46, 192,177 and 75,595.98 is: 104,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,259.46 : 192,177 = 75,595.98 : x
  2. Step 2: Convert to fraction form
    139,259.46/192,177 = 75,595.98/x
  3. Step 3: Cross multiply
    139,259.46x = 192,177 × 75,595.98
  4. Step 4: Simplify right side
    139,259.46x = 14,527,808,648.46
  5. Step 5: Solve for x
    x = 14,527,808,648.46/139,259.46
  6. Step 6: Final answer
    x = 104,321.88

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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.