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Finding the Fourth Proportional to 118,964.65, 164,171.45 and 65,250.11

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Solution

The fourth proportional to 118,964.65, 164,171.45 and 65,250.11 is: 90,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,964.65 : 164,171.45 = 65,250.11 : x
  2. Step 2: Convert to fraction form
    118,964.65/164,171.45 = 65,250.11/x
  3. Step 3: Cross multiply
    118,964.65x = 164,171.45 × 65,250.11
  4. Step 4: Simplify right side
    118,964.65x = 10,712,204,350.50
  5. Step 5: Solve for x
    x = 10,712,204,350.50/118,964.65
  6. Step 6: Final answer
    x = 90,045.27

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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.