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Finding the Fourth Proportional to 122,694.93, 169,620.93 and 121,572.27

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Solution

The fourth proportional to 122,694.93, 169,620.93 and 121,572.27 is: 168,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,694.93 : 169,620.93 = 121,572.27 : x
  2. Step 2: Convert to fraction form
    122,694.93/169,620.93 = 121,572.27/x
  3. Step 3: Cross multiply
    122,694.93x = 169,620.93 × 121,572.27
  4. Step 4: Simplify right side
    122,694.93x = 20,621,201,499.61
  5. Step 5: Solve for x
    x = 20,621,201,499.61/122,694.93
  6. Step 6: Final answer
    x = 168,068.90

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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.