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Finding the Fourth Proportional to 114.11, 156.23 and 113.00

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Solution

The fourth proportional to 114.11, 156.23 and 113.00 is: 154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.11 : 156.23 = 113.00 : x
  2. Step 2: Convert to fraction form
    114.11/156.23 = 113.00/x
  3. Step 3: Cross multiply
    114.11x = 156.23 × 113.00
  4. Step 4: Simplify right side
    114.11x = 17,653.07
  5. Step 5: Solve for x
    x = 17,653.07/114.11
  6. Step 6: Final answer
    x = 154.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.