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Finding the Fourth Proportional to 78,068.19, 117,105.53 and 22,664.19

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Solution

The fourth proportional to 78,068.19, 117,105.53 and 22,664.19 is: 33,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,068.19 : 117,105.53 = 22,664.19 : x
  2. Step 2: Convert to fraction form
    78,068.19/117,105.53 = 22,664.19/x
  3. Step 3: Cross multiply
    78,068.19x = 117,105.53 × 22,664.19
  4. Step 4: Simplify right side
    78,068.19x = 2,654,101,868.65
  5. Step 5: Solve for x
    x = 2,654,101,868.65/78,068.19
  6. Step 6: Final answer
    x = 33,997.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.