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Finding the Fourth Proportional to 103,640.30, 155,460.45 and 37,076.39

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Solution

The fourth proportional to 103,640.30, 155,460.45 and 37,076.39 is: 55,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.30 : 155,460.45 = 37,076.39 : x
  2. Step 2: Convert to fraction form
    103,640.30/155,460.45 = 37,076.39/x
  3. Step 3: Cross multiply
    103,640.30x = 155,460.45 × 37,076.39
  4. Step 4: Simplify right side
    103,640.30x = 5,763,912,273.78
  5. Step 5: Solve for x
    x = 5,763,912,273.78/103,640.30
  6. Step 6: Final answer
    x = 55,614.59

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1.5x scale

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.