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Finding the Fourth Proportional to 121,737.82, 182,606.82 and 55,165.54

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Solution

The fourth proportional to 121,737.82, 182,606.82 and 55,165.54 is: 82,748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,737.82 : 182,606.82 = 55,165.54 : x
  2. Step 2: Convert to fraction form
    121,737.82/182,606.82 = 55,165.54/x
  3. Step 3: Cross multiply
    121,737.82x = 182,606.82 × 55,165.54
  4. Step 4: Simplify right side
    121,737.82x = 10,073,603,832.98
  5. Step 5: Solve for x
    x = 10,073,603,832.98/121,737.82
  6. Step 6: Final answer
    x = 82,748.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.