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Finding the Fourth Proportional to 123,043.01, 169,799.37 and 66,454.39

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Solution

The fourth proportional to 123,043.01, 169,799.37 and 66,454.39 is: 91,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,043.01 : 169,799.37 = 66,454.39 : x
  2. Step 2: Convert to fraction form
    123,043.01/169,799.37 = 66,454.39/x
  3. Step 3: Cross multiply
    123,043.01x = 169,799.37 × 66,454.39
  4. Step 4: Simplify right side
    123,043.01x = 11,283,912,706.74
  5. Step 5: Solve for x
    x = 11,283,912,706.74/123,043.01
  6. Step 6: Final answer
    x = 91,707.06

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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.