Home / 123,044.01-169,800.75-66,455.39

Finding the Fourth Proportional to 123,044.01, 169,800.75 and 66,455.39

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Solution

The fourth proportional to 123,044.01, 169,800.75 and 66,455.39 is: 91,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,044.01 : 169,800.75 = 66,455.39 : x
  2. Step 2: Convert to fraction form
    123,044.01/169,800.75 = 66,455.39/x
  3. Step 3: Cross multiply
    123,044.01x = 169,800.75 × 66,455.39
  4. Step 4: Simplify right side
    123,044.01x = 11,284,175,063.54
  5. Step 5: Solve for x
    x = 11,284,175,063.54/123,044.01
  6. Step 6: Final answer
    x = 91,708.45

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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.