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Finding the Fourth Proportional to 130.95, 195.60 and 110.45

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Solution

The fourth proportional to 130.95, 195.60 and 110.45 is: 164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.95 : 195.60 = 110.45 : x
  2. Step 2: Convert to fraction form
    130.95/195.60 = 110.45/x
  3. Step 3: Cross multiply
    130.95x = 195.60 × 110.45
  4. Step 4: Simplify right side
    130.95x = 21,603.04
  5. Step 5: Solve for x
    x = 21,603.04/130.95
  6. Step 6: Final answer
    x = 164.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.