Home / 139,827.66-192,956.73-85,470.84

Finding the Fourth Proportional to 139,827.66, 192,956.73 and 85,470.84

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Solution

The fourth proportional to 139,827.66, 192,956.73 and 85,470.84 is: 117,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,827.66 : 192,956.73 = 85,470.84 : x
  2. Step 2: Convert to fraction form
    139,827.66/192,956.73 = 85,470.84/x
  3. Step 3: Cross multiply
    139,827.66x = 192,956.73 × 85,470.84
  4. Step 4: Simplify right side
    139,827.66x = 16,492,173,716.62
  5. Step 5: Solve for x
    x = 16,492,173,716.62/139,827.66
  6. Step 6: Final answer
    x = 117,946.43

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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.