Home / 185,721.62-256,033.89-131,987.03

Finding the Fourth Proportional to 185,721.62, 256,033.89 and 131,987.03

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Solution

The fourth proportional to 185,721.62, 256,033.89 and 131,987.03 is: 181,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,721.62 : 256,033.89 = 131,987.03 : x
  2. Step 2: Convert to fraction form
    185,721.62/256,033.89 = 131,987.03/x
  3. Step 3: Cross multiply
    185,721.62x = 256,033.89 × 131,987.03
  4. Step 4: Simplify right side
    185,721.62x = 33,793,151,440.28
  5. Step 5: Solve for x
    x = 33,793,151,440.28/185,721.62
  6. Step 6: Final answer
    x = 181,955.94

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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.