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Finding the Fourth Proportional to 147,175.20, 203,164.20 and 99,493.20

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Solution

The fourth proportional to 147,175.20, 203,164.20 and 99,493.20 is: 137,342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,175.20 : 203,164.20 = 99,493.20 : x
  2. Step 2: Convert to fraction form
    147,175.20/203,164.20 = 99,493.20/x
  3. Step 3: Cross multiply
    147,175.20x = 203,164.20 × 99,493.20
  4. Step 4: Simplify right side
    147,175.20x = 20,213,456,383.44
  5. Step 5: Solve for x
    x = 20,213,456,383.44/147,175.20
  6. Step 6: Final answer
    x = 137,342.82

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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.