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Finding the Fourth Proportional to 115,223.91, 171,855.62 and 113,230.11

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Solution

The fourth proportional to 115,223.91, 171,855.62 and 113,230.11 is: 168,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,223.91 : 171,855.62 = 113,230.11 : x
  2. Step 2: Convert to fraction form
    115,223.91/171,855.62 = 113,230.11/x
  3. Step 3: Cross multiply
    115,223.91x = 171,855.62 × 113,230.11
  4. Step 4: Simplify right side
    115,223.91x = 19,459,230,190.57
  5. Step 5: Solve for x
    x = 19,459,230,190.57/115,223.91
  6. Step 6: Final answer
    x = 168,881.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.