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Finding the Fourth Proportional to 139,467.17, 192,464.96 and 75,804.81

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Solution

The fourth proportional to 139,467.17, 192,464.96 and 75,804.81 is: 104,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,467.17 : 192,464.96 = 75,804.81 : x
  2. Step 2: Convert to fraction form
    139,467.17/192,464.96 = 75,804.81/x
  3. Step 3: Cross multiply
    139,467.17x = 192,464.96 × 75,804.81
  4. Step 4: Simplify right side
    139,467.17x = 14,589,769,345.43
  5. Step 5: Solve for x
    x = 14,589,769,345.43/139,467.17
  6. Step 6: Final answer
    x = 104,610.78

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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.