Home / 185,809.05-256,522.91-122,331.38

Finding the Fourth Proportional to 185,809.05, 256,522.91 and 122,331.38

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Solution

The fourth proportional to 185,809.05, 256,522.91 and 122,331.38 is: 168,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,809.05 : 256,522.91 = 122,331.38 : x
  2. Step 2: Convert to fraction form
    185,809.05/256,522.91 = 122,331.38/x
  3. Step 3: Cross multiply
    185,809.05x = 256,522.91 × 122,331.38
  4. Step 4: Simplify right side
    185,809.05x = 31,380,799,687.64
  5. Step 5: Solve for x
    x = 31,380,799,687.64/185,809.05
  6. Step 6: Final answer
    x = 168,887.36

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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.