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Finding the Fourth Proportional to 98,016.12, 135,212.38 and 64,044.47

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Solution

The fourth proportional to 98,016.12, 135,212.38 and 64,044.47 is: 88,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,016.12 : 135,212.38 = 64,044.47 : x
  2. Step 2: Convert to fraction form
    98,016.12/135,212.38 = 64,044.47/x
  3. Step 3: Cross multiply
    98,016.12x = 135,212.38 × 64,044.47
  4. Step 4: Simplify right side
    98,016.12x = 8,659,605,392.46
  5. Step 5: Solve for x
    x = 8,659,605,392.46/98,016.12
  6. Step 6: Final answer
    x = 88,348.79

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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.