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Finding the Fourth Proportional to 134.83, 202.33 and 74.00

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Solution

The fourth proportional to 134.83, 202.33 and 74.00 is: 111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.83 : 202.33 = 74.00 : x
  2. Step 2: Convert to fraction form
    134.83/202.33 = 74.00/x
  3. Step 3: Cross multiply
    134.83x = 202.33 × 74.00
  4. Step 4: Simplify right side
    134.83x = 14,972.24
  5. Step 5: Solve for x
    x = 14,972.24/134.83
  6. Step 6: Final answer
    x = 111.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.