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Finding the Fourth Proportional to 121,450.60, 182,132.70 and 54,922.60

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Solution

The fourth proportional to 121,450.60, 182,132.70 and 54,922.60 is: 82,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,450.60 : 182,132.70 = 54,922.60 : x
  2. Step 2: Convert to fraction form
    121,450.60/182,132.70 = 54,922.60/x
  3. Step 3: Cross multiply
    121,450.60x = 182,132.70 × 54,922.60
  4. Step 4: Simplify right side
    121,450.60x = 10,003,201,429.02
  5. Step 5: Solve for x
    x = 10,003,201,429.02/121,450.60
  6. Step 6: Final answer
    x = 82,364.36

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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.