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Finding the Fourth Proportional to 203,670, 281,064.60 and 124,182

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Solution

The fourth proportional to 203,670, 281,064.60 and 124,182 is: 171,371.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,670 : 281,064.60 = 124,182 : x
  2. Step 2: Convert to fraction form
    203,670/281,064.60 = 124,182/x
  3. Step 3: Cross multiply
    203,670x = 281,064.60 × 124,182
  4. Step 4: Simplify right side
    203,670x = 34,903,164,157.20
  5. Step 5: Solve for x
    x = 34,903,164,157.20/203,670
  6. Step 6: Final answer
    x = 171,371.16

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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.