Home / 103,640.26-155,462.21-37,128.12

Finding the Fourth Proportional to 103,640.26, 155,462.21 and 37,128.12

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Solution

The fourth proportional to 103,640.26, 155,462.21 and 37,128.12 is: 55,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.26 : 155,462.21 = 37,128.12 : x
  2. Step 2: Convert to fraction form
    103,640.26/155,462.21 = 37,128.12/x
  3. Step 3: Cross multiply
    103,640.26x = 155,462.21 × 37,128.12
  4. Step 4: Simplify right side
    103,640.26x = 5,772,019,588.35
  5. Step 5: Solve for x
    x = 5,772,019,588.35/103,640.26
  6. Step 6: Final answer
    x = 55,692.83

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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.