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Finding the Fourth Proportional to 116.36, 160.50 and 88.72

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Solution

The fourth proportional to 116.36, 160.50 and 88.72 is: 122.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.36 : 160.50 = 88.72 : x
  2. Step 2: Convert to fraction form
    116.36/160.50 = 88.72/x
  3. Step 3: Cross multiply
    116.36x = 160.50 × 88.72
  4. Step 4: Simplify right side
    116.36x = 14,238.76
  5. Step 5: Solve for x
    x = 14,238.76/116.36
  6. Step 6: Final answer
    x = 122.37

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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.