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Finding the Fourth Proportional to 139,198.61, 192,094.58 and 75,536.39

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Solution

The fourth proportional to 139,198.61, 192,094.58 and 75,536.39 is: 104,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,198.61 : 192,094.58 = 75,536.39 : x
  2. Step 2: Convert to fraction form
    139,198.61/192,094.58 = 75,536.39/x
  3. Step 3: Cross multiply
    139,198.61x = 192,094.58 × 75,536.39
  4. Step 4: Simplify right side
    139,198.61x = 14,510,131,780.84
  5. Step 5: Solve for x
    x = 14,510,131,780.84/139,198.61
  6. Step 6: Final answer
    x = 104,240.49

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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.