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Finding the Fourth Proportional to 88.04, 132.56 and 64.16

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Solution

The fourth proportional to 88.04, 132.56 and 64.16 is: 96.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.04 : 132.56 = 64.16 : x
  2. Step 2: Convert to fraction form
    88.04/132.56 = 64.16/x
  3. Step 3: Cross multiply
    88.04x = 132.56 × 64.16
  4. Step 4: Simplify right side
    88.04x = 8,505.05
  5. Step 5: Solve for x
    x = 8,505.05/88.04
  6. Step 6: Final answer
    x = 96.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.