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Finding the Fourth Proportional to 122,160.25, 168,579.51 and 68,446.31

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Solution

The fourth proportional to 122,160.25, 168,579.51 and 68,446.31 is: 94,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,160.25 : 168,579.51 = 68,446.31 : x
  2. Step 2: Convert to fraction form
    122,160.25/168,579.51 = 68,446.31/x
  3. Step 3: Cross multiply
    122,160.25x = 168,579.51 × 68,446.31
  4. Step 4: Simplify right side
    122,160.25x = 11,538,645,401.11
  5. Step 5: Solve for x
    x = 11,538,645,401.11/122,160.25
  6. Step 6: Final answer
    x = 94,455.00

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1.5x scale

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.