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Finding the Fourth Proportional to 169,466.80, 254,127.30 and 85,194.40

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Solution

The fourth proportional to 169,466.80, 254,127.30 and 85,194.40 is: 127,754.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,466.80 : 254,127.30 = 85,194.40 : x
  2. Step 2: Convert to fraction form
    169,466.80/254,127.30 = 85,194.40/x
  3. Step 3: Cross multiply
    169,466.80x = 254,127.30 × 85,194.40
  4. Step 4: Simplify right side
    169,466.80x = 21,650,222,847.12
  5. Step 5: Solve for x
    x = 21,650,222,847.12/169,466.80
  6. Step 6: Final answer
    x = 127,754.95

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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.