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Finding the Fourth Proportional to 131.46, 181.39 and 73.24

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Solution

The fourth proportional to 131.46, 181.39 and 73.24 is: 101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.46 : 181.39 = 73.24 : x
  2. Step 2: Convert to fraction form
    131.46/181.39 = 73.24/x
  3. Step 3: Cross multiply
    131.46x = 181.39 × 73.24
  4. Step 4: Simplify right side
    131.46x = 13,285.00
  5. Step 5: Solve for x
    x = 13,285.00/131.46
  6. Step 6: Final answer
    x = 101.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.