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Finding the Fourth Proportional to 139,146.37, 192,022.47 and 75,484.62

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Solution

The fourth proportional to 139,146.37, 192,022.47 and 75,484.62 is: 104,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,146.37 : 192,022.47 = 75,484.62 : x
  2. Step 2: Convert to fraction form
    139,146.37/192,022.47 = 75,484.62/x
  3. Step 3: Cross multiply
    139,146.37x = 192,022.47 × 75,484.62
  4. Step 4: Simplify right side
    139,146.37x = 14,494,743,179.41
  5. Step 5: Solve for x
    x = 14,494,743,179.41/139,146.37
  6. Step 6: Final answer
    x = 104,169.04

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1.5x scale

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.