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Finding the Fourth Proportional to 103,454.72, 155,194.23 and 36,904.31

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Solution

The fourth proportional to 103,454.72, 155,194.23 and 36,904.31 is: 55,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,454.72 : 155,194.23 = 36,904.31 : x
  2. Step 2: Convert to fraction form
    103,454.72/155,194.23 = 36,904.31/x
  3. Step 3: Cross multiply
    103,454.72x = 155,194.23 × 36,904.31
  4. Step 4: Simplify right side
    103,454.72x = 5,727,335,974.13
  5. Step 5: Solve for x
    x = 5,727,335,974.13/103,454.72
  6. Step 6: Final answer
    x = 55,360.80

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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.