Home / 123,110.01-169,891.86-66,521.39

Finding the Fourth Proportional to 123,110.01, 169,891.86 and 66,521.39

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Solution

The fourth proportional to 123,110.01, 169,891.86 and 66,521.39 is: 91,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,110.01 : 169,891.86 = 66,521.39 : x
  2. Step 2: Convert to fraction form
    123,110.01/169,891.86 = 66,521.39/x
  3. Step 3: Cross multiply
    123,110.01x = 169,891.86 × 66,521.39
  4. Step 4: Simplify right side
    123,110.01x = 11,301,441,494.82
  5. Step 5: Solve for x
    x = 11,301,441,494.82/123,110.01
  6. Step 6: Final answer
    x = 91,799.53

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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.