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Finding the Fourth Proportional to 137.06, 206.39 and 101.24

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Solution

The fourth proportional to 137.06, 206.39 and 101.24 is: 152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137.06 : 206.39 = 101.24 : x
  2. Step 2: Convert to fraction form
    137.06/206.39 = 101.24/x
  3. Step 3: Cross multiply
    137.06x = 206.39 × 101.24
  4. Step 4: Simplify right side
    137.06x = 20,894.92
  5. Step 5: Solve for x
    x = 20,894.92/137.06
  6. Step 6: Final answer
    x = 152.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.