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Finding the Fourth Proportional to 136.04, 202.93 and 127.76

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Solution

The fourth proportional to 136.04, 202.93 and 127.76 is: 190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136.04 : 202.93 = 127.76 : x
  2. Step 2: Convert to fraction form
    136.04/202.93 = 127.76/x
  3. Step 3: Cross multiply
    136.04x = 202.93 × 127.76
  4. Step 4: Simplify right side
    136.04x = 25,926.34
  5. Step 5: Solve for x
    x = 25,926.34/136.04
  6. Step 6: Final answer
    x = 190.58

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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.