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Finding the Fourth Proportional to 123,054.90, 169,819.32 and 69,336.96

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Solution

The fourth proportional to 123,054.90, 169,819.32 and 69,336.96 is: 95,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,054.90 : 169,819.32 = 69,336.96 : x
  2. Step 2: Convert to fraction form
    123,054.90/169,819.32 = 69,336.96/x
  3. Step 3: Cross multiply
    123,054.90x = 169,819.32 × 69,336.96
  4. Step 4: Simplify right side
    123,054.90x = 11,774,755,398.07
  5. Step 5: Solve for x
    x = 11,774,755,398.07/123,054.90
  6. Step 6: Final answer
    x = 95,687.01

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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.