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Finding the Fourth Proportional to 116.36, 160.25 and 101.60

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Solution

The fourth proportional to 116.36, 160.25 and 101.60 is: 139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.36 : 160.25 = 101.60 : x
  2. Step 2: Convert to fraction form
    116.36/160.25 = 101.60/x
  3. Step 3: Cross multiply
    116.36x = 160.25 × 101.60
  4. Step 4: Simplify right side
    116.36x = 16,282.05
  5. Step 5: Solve for x
    x = 16,282.05/116.36
  6. Step 6: Final answer
    x = 139.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.