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Finding the Fourth Proportional to 169,363.49, 254,012.81 and 85,100.32

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Solution

The fourth proportional to 169,363.49, 254,012.81 and 85,100.32 is: 127,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,363.49 : 254,012.81 = 85,100.32 : x
  2. Step 2: Convert to fraction form
    169,363.49/254,012.81 = 85,100.32/x
  3. Step 3: Cross multiply
    169,363.49x = 254,012.81 × 85,100.32
  4. Step 4: Simplify right side
    169,363.49x = 21,616,570,145.04
  5. Step 5: Solve for x
    x = 21,616,570,145.04/169,363.49
  6. Step 6: Final answer
    x = 127,634.18

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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.