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Finding the Fourth Proportional to 127,722.48, 191,418.60 and 88,216.56

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Solution

The fourth proportional to 127,722.48, 191,418.60 and 88,216.56 is: 132,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,722.48 : 191,418.60 = 88,216.56 : x
  2. Step 2: Convert to fraction form
    127,722.48/191,418.60 = 88,216.56/x
  3. Step 3: Cross multiply
    127,722.48x = 191,418.60 × 88,216.56
  4. Step 4: Simplify right side
    127,722.48x = 16,886,290,412.02
  5. Step 5: Solve for x
    x = 16,886,290,412.02/127,722.48
  6. Step 6: Final answer
    x = 132,210.79

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