Home / 123,077.28-169,846.68-66,488.64

Finding the Fourth Proportional to 123,077.28, 169,846.68 and 66,488.64

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Solution

The fourth proportional to 123,077.28, 169,846.68 and 66,488.64 is: 91,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,077.28 : 169,846.68 = 66,488.64 : x
  2. Step 2: Convert to fraction form
    123,077.28/169,846.68 = 66,488.64/x
  3. Step 3: Cross multiply
    123,077.28x = 169,846.68 × 66,488.64
  4. Step 4: Simplify right side
    123,077.28x = 11,292,874,761.72
  5. Step 5: Solve for x
    x = 11,292,874,761.72/123,077.28
  6. Step 6: Final answer
    x = 91,754.34

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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.