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Finding the Fourth Proportional to 122,622.70, 169,224.33 and 68,907.55

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Solution

The fourth proportional to 122,622.70, 169,224.33 and 68,907.55 is: 95,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,622.70 : 169,224.33 = 68,907.55 : x
  2. Step 2: Convert to fraction form
    122,622.70/169,224.33 = 68,907.55/x
  3. Step 3: Cross multiply
    122,622.70x = 169,224.33 × 68,907.55
  4. Step 4: Simplify right side
    122,622.70x = 11,660,833,980.69
  5. Step 5: Solve for x
    x = 11,660,833,980.69/122,622.70
  6. Step 6: Final answer
    x = 95,095.23

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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.