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Finding the Fourth Proportional to 139,450.24, 192,442.56 and 75,788.08

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Solution

The fourth proportional to 139,450.24, 192,442.56 and 75,788.08 is: 104,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.24 : 192,442.56 = 75,788.08 : x
  2. Step 2: Convert to fraction form
    139,450.24/192,442.56 = 75,788.08/x
  3. Step 3: Cross multiply
    139,450.24x = 192,442.56 × 75,788.08
  4. Step 4: Simplify right side
    139,450.24x = 14,584,852,132.68
  5. Step 5: Solve for x
    x = 14,584,852,132.68/139,450.24
  6. Step 6: Final answer
    x = 104,588.22

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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.