Home / 103,640.28-155,487.78-37,087.08

Finding the Fourth Proportional to 103,640.28, 155,487.78 and 37,087.08

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Solution

The fourth proportional to 103,640.28, 155,487.78 and 37,087.08 is: 55,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.28 : 155,487.78 = 37,087.08 : x
  2. Step 2: Convert to fraction form
    103,640.28/155,487.78 = 37,087.08/x
  3. Step 3: Cross multiply
    103,640.28x = 155,487.78 × 37,087.08
  4. Step 4: Simplify right side
    103,640.28x = 5,766,587,735.88
  5. Step 5: Solve for x
    x = 5,766,587,735.88/103,640.28
  6. Step 6: Final answer
    x = 55,640.41

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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.