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Finding the Fourth Proportional to 180,412.72, 248,982 and 99,843.60

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Solution

The fourth proportional to 180,412.72, 248,982 and 99,843.60 is: 137,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,412.72 : 248,982 = 99,843.60 : x
  2. Step 2: Convert to fraction form
    180,412.72/248,982 = 99,843.60/x
  3. Step 3: Cross multiply
    180,412.72x = 248,982 × 99,843.60
  4. Step 4: Simplify right side
    180,412.72x = 24,859,259,215.20
  5. Step 5: Solve for x
    x = 24,859,259,215.20/180,412.72
  6. Step 6: Final answer
    x = 137,791.06

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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.