Home / 139,426.11-192,409.26-75,763.92

Finding the Fourth Proportional to 139,426.11, 192,409.26 and 75,763.92

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Solution

The fourth proportional to 139,426.11, 192,409.26 and 75,763.92 is: 104,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,426.11 : 192,409.26 = 75,763.92 : x
  2. Step 2: Convert to fraction form
    139,426.11/192,409.26 = 75,763.92/x
  3. Step 3: Cross multiply
    139,426.11x = 192,409.26 × 75,763.92
  4. Step 4: Simplify right side
    139,426.11x = 14,577,679,781.90
  5. Step 5: Solve for x
    x = 14,577,679,781.90/139,426.11
  6. Step 6: Final answer
    x = 104,554.88

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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.