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Finding the Fourth Proportional to 134.14, 201.93 and 121.57

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Solution

The fourth proportional to 134.14, 201.93 and 121.57 is: 183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.14 : 201.93 = 121.57 : x
  2. Step 2: Convert to fraction form
    134.14/201.93 = 121.57/x
  3. Step 3: Cross multiply
    134.14x = 201.93 × 121.57
  4. Step 4: Simplify right side
    134.14x = 24,547.67
  5. Step 5: Solve for x
    x = 24,547.67/134.14
  6. Step 6: Final answer
    x = 183.00

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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.