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Finding the Fourth Proportional to 179,077.60, 247,107.68 and 103,612

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Solution

The fourth proportional to 179,077.60, 247,107.68 and 103,612 is: 142,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,077.60 : 247,107.68 = 103,612 : x
  2. Step 2: Convert to fraction form
    179,077.60/247,107.68 = 103,612/x
  3. Step 3: Cross multiply
    179,077.60x = 247,107.68 × 103,612
  4. Step 4: Simplify right side
    179,077.60x = 25,603,320,940.16
  5. Step 5: Solve for x
    x = 25,603,320,940.16/179,077.60
  6. Step 6: Final answer
    x = 142,973.33

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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.