Home / 139,824.52-192,957.92-76,162.60

Finding the Fourth Proportional to 139,824.52, 192,957.92 and 76,162.60

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Solution

The fourth proportional to 139,824.52, 192,957.92 and 76,162.60 is: 105,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,824.52 : 192,957.92 = 76,162.60 : x
  2. Step 2: Convert to fraction form
    139,824.52/192,957.92 = 76,162.60/x
  3. Step 3: Cross multiply
    139,824.52x = 192,957.92 × 76,162.60
  4. Step 4: Simplify right side
    139,824.52x = 14,696,176,877.79
  5. Step 5: Solve for x
    x = 14,696,176,877.79/139,824.52
  6. Step 6: Final answer
    x = 105,104.43

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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.