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Finding the Fourth Proportional to 122,212.80, 159,051.60 and 122,212.80

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Solution

The fourth proportional to 122,212.80, 159,051.60 and 122,212.80 is: 159,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,212.80 : 159,051.60 = 122,212.80 : x
  2. Step 2: Convert to fraction form
    122,212.80/159,051.60 = 122,212.80/x
  3. Step 3: Cross multiply
    122,212.80x = 159,051.60 × 122,212.80
  4. Step 4: Simplify right side
    122,212.80x = 19,438,141,380.48
  5. Step 5: Solve for x
    x = 19,438,141,380.48/122,212.80
  6. Step 6: Final answer
    x = 159,051.60

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These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.