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Finding the Fourth Proportional to 114.56, 157.92 and 102.32

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Solution

The fourth proportional to 114.56, 157.92 and 102.32 is: 141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.56 : 157.92 = 102.32 : x
  2. Step 2: Convert to fraction form
    114.56/157.92 = 102.32/x
  3. Step 3: Cross multiply
    114.56x = 157.92 × 102.32
  4. Step 4: Simplify right side
    114.56x = 16,158.37
  5. Step 5: Solve for x
    x = 16,158.37/114.56
  6. Step 6: Final answer
    x = 141.05

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Why These Related Problems?

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