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Finding the Fourth Proportional to 141,722.54, 195,577.09 and 78,060.33

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Solution

The fourth proportional to 141,722.54, 195,577.09 and 78,060.33 is: 107,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,722.54 : 195,577.09 = 78,060.33 : x
  2. Step 2: Convert to fraction form
    141,722.54/195,577.09 = 78,060.33/x
  3. Step 3: Cross multiply
    141,722.54x = 195,577.09 × 78,060.33
  4. Step 4: Simplify right side
    141,722.54x = 15,266,811,990.69
  5. Step 5: Solve for x
    x = 15,266,811,990.69/141,722.54
  6. Step 6: Final answer
    x = 107,723.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.