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Finding the Fourth Proportional to 103,246.01, 142,520.01 and 73,188.43

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Solution

The fourth proportional to 103,246.01, 142,520.01 and 73,188.43 is: 101,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,246.01 : 142,520.01 = 73,188.43 : x
  2. Step 2: Convert to fraction form
    103,246.01/142,520.01 = 73,188.43/x
  3. Step 3: Cross multiply
    103,246.01x = 142,520.01 × 73,188.43
  4. Step 4: Simplify right side
    103,246.01x = 10,430,815,144.73
  5. Step 5: Solve for x
    x = 10,430,815,144.73/103,246.01
  6. Step 6: Final answer
    x = 101,028.75

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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.