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Finding the Fourth Proportional to 147.72, 203.94 and 98.04

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Solution

The fourth proportional to 147.72, 203.94 and 98.04 is: 135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.72 : 203.94 = 98.04 : x
  2. Step 2: Convert to fraction form
    147.72/203.94 = 98.04/x
  3. Step 3: Cross multiply
    147.72x = 203.94 × 98.04
  4. Step 4: Simplify right side
    147.72x = 19,994.28
  5. Step 5: Solve for x
    x = 19,994.28/147.72
  6. Step 6: Final answer
    x = 135.35

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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.