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Finding the Fourth Proportional to 139,149.45, 192,162.65 and 96,238.89

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Solution

The fourth proportional to 139,149.45, 192,162.65 and 96,238.89 is: 132,904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,149.45 : 192,162.65 = 96,238.89 : x
  2. Step 2: Convert to fraction form
    139,149.45/192,162.65 = 96,238.89/x
  3. Step 3: Cross multiply
    139,149.45x = 192,162.65 × 96,238.89
  4. Step 4: Simplify right side
    139,149.45x = 18,493,519,654.26
  5. Step 5: Solve for x
    x = 18,493,519,654.26/139,149.45
  6. Step 6: Final answer
    x = 132,904.01

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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.