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Finding the Fourth Proportional to 139,496.94, 192,506.90 and 75,834.59

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Solution

The fourth proportional to 139,496.94, 192,506.90 and 75,834.59 is: 104,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,496.94 : 192,506.90 = 75,834.59 : x
  2. Step 2: Convert to fraction form
    139,496.94/192,506.90 = 75,834.59/x
  3. Step 3: Cross multiply
    139,496.94x = 192,506.90 × 75,834.59
  4. Step 4: Simplify right side
    139,496.94x = 14,598,680,491.96
  5. Step 5: Solve for x
    x = 14,598,680,491.96/139,496.94
  6. Step 6: Final answer
    x = 104,652.33

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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.