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Finding the Fourth Proportional to 158.34, 236.60 and 96.99

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Solution

The fourth proportional to 158.34, 236.60 and 96.99 is: 144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158.34 : 236.60 = 96.99 : x
  2. Step 2: Convert to fraction form
    158.34/236.60 = 96.99/x
  3. Step 3: Cross multiply
    158.34x = 236.60 × 96.99
  4. Step 4: Simplify right side
    158.34x = 22,947.83
  5. Step 5: Solve for x
    x = 22,947.83/158.34
  6. Step 6: Final answer
    x = 144.93

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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.