Home / 138,997.22-191,814.48-75,334.25

Finding the Fourth Proportional to 138,997.22, 191,814.48 and 75,334.25

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Solution

The fourth proportional to 138,997.22, 191,814.48 and 75,334.25 is: 103,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,997.22 : 191,814.48 = 75,334.25 : x
  2. Step 2: Convert to fraction form
    138,997.22/191,814.48 = 75,334.25/x
  3. Step 3: Cross multiply
    138,997.22x = 191,814.48 × 75,334.25
  4. Step 4: Simplify right side
    138,997.22x = 14,450,200,469.48
  5. Step 5: Solve for x
    x = 14,450,200,469.48/138,997.22
  6. Step 6: Final answer
    x = 103,960.36

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1.5x scale

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.