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Finding the Fourth Proportional to 139,466.80, 192,456.03 and 75,804.04

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Solution

The fourth proportional to 139,466.80, 192,456.03 and 75,804.04 is: 104,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,466.80 : 192,456.03 = 75,804.04 : x
  2. Step 2: Convert to fraction form
    139,466.80/192,456.03 = 75,804.04/x
  3. Step 3: Cross multiply
    139,466.80x = 192,456.03 × 75,804.04
  4. Step 4: Simplify right side
    139,466.80x = 14,588,944,596.36
  5. Step 5: Solve for x
    x = 14,588,944,596.36/139,466.80
  6. Step 6: Final answer
    x = 104,605.14

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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.