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Finding the Fourth Proportional to 107.40, 148.10 and 88.92

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Solution

The fourth proportional to 107.40, 148.10 and 88.92 is: 122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.40 : 148.10 = 88.92 : x
  2. Step 2: Convert to fraction form
    107.40/148.10 = 88.92/x
  3. Step 3: Cross multiply
    107.40x = 148.10 × 88.92
  4. Step 4: Simplify right side
    107.40x = 13,169.05
  5. Step 5: Solve for x
    x = 13,169.05/107.40
  6. Step 6: Final answer
    x = 122.62

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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.