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Finding the Fourth Proportional to 186,004.78, 278,835.04 and 67,644.34

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Solution

The fourth proportional to 186,004.78, 278,835.04 and 67,644.34 is: 101,403.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,004.78 : 278,835.04 = 67,644.34 : x
  2. Step 2: Convert to fraction form
    186,004.78/278,835.04 = 67,644.34/x
  3. Step 3: Cross multiply
    186,004.78x = 278,835.04 × 67,644.34
  4. Step 4: Simplify right side
    186,004.78x = 18,861,612,249.67
  5. Step 5: Solve for x
    x = 18,861,612,249.67/186,004.78
  6. Step 6: Final answer
    x = 101,403.91

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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.