Home / 100,997.28-139,375.89-58,580.01

Finding the Fourth Proportional to 100,997.28, 139,375.89 and 58,580.01

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Solution

The fourth proportional to 100,997.28, 139,375.89 and 58,580.01 is: 80,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,997.28 : 139,375.89 = 58,580.01 : x
  2. Step 2: Convert to fraction form
    100,997.28/139,375.89 = 58,580.01/x
  3. Step 3: Cross multiply
    100,997.28x = 139,375.89 × 58,580.01
  4. Step 4: Simplify right side
    100,997.28x = 8,164,641,029.96
  5. Step 5: Solve for x
    x = 8,164,641,029.96/100,997.28
  6. Step 6: Final answer
    x = 80,840.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.