Home / 139,634.20-192,696.04-75,972.46

Finding the Fourth Proportional to 139,634.20, 192,696.04 and 75,972.46

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Solution

The fourth proportional to 139,634.20, 192,696.04 and 75,972.46 is: 104,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,634.20 : 192,696.04 = 75,972.46 : x
  2. Step 2: Convert to fraction form
    139,634.20/192,696.04 = 75,972.46/x
  3. Step 3: Cross multiply
    139,634.20x = 192,696.04 × 75,972.46
  4. Step 4: Simplify right side
    139,634.20x = 14,639,592,191.06
  5. Step 5: Solve for x
    x = 14,639,592,191.06/139,634.20
  6. Step 6: Final answer
    x = 104,842.45

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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.