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Finding the Fourth Proportional to 139,464.39, 192,462.03 and 75,802.17

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Solution

The fourth proportional to 139,464.39, 192,462.03 and 75,802.17 is: 104,607.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,464.39 : 192,462.03 = 75,802.17 : x
  2. Step 2: Convert to fraction form
    139,464.39/192,462.03 = 75,802.17/x
  3. Step 3: Cross multiply
    139,464.39x = 192,462.03 × 75,802.17
  4. Step 4: Simplify right side
    139,464.39x = 14,589,039,516.61
  5. Step 5: Solve for x
    x = 14,589,039,516.61/139,464.39
  6. Step 6: Final answer
    x = 104,607.63

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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.