Home / 99,968.78-150,027-47,378.42

Finding the Fourth Proportional to 99,968.78, 150,027 and 47,378.42

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Solution

The fourth proportional to 99,968.78, 150,027 and 47,378.42 is: 71,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,968.78 : 150,027 = 47,378.42 : x
  2. Step 2: Convert to fraction form
    99,968.78/150,027 = 47,378.42/x
  3. Step 3: Cross multiply
    99,968.78x = 150,027 × 47,378.42
  4. Step 4: Simplify right side
    99,968.78x = 7,108,042,217.34
  5. Step 5: Solve for x
    x = 7,108,042,217.34/99,968.78
  6. Step 6: Final answer
    x = 71,102.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.