Home / 100,240.98-138,327.26-54,910.56

Finding the Fourth Proportional to 100,240.98, 138,327.26 and 54,910.56

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Solution

The fourth proportional to 100,240.98, 138,327.26 and 54,910.56 is: 75,773.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,240.98 : 138,327.26 = 54,910.56 : x
  2. Step 2: Convert to fraction form
    100,240.98/138,327.26 = 54,910.56/x
  3. Step 3: Cross multiply
    100,240.98x = 138,327.26 × 54,910.56
  4. Step 4: Simplify right side
    100,240.98x = 7,595,627,309.87
  5. Step 5: Solve for x
    x = 7,595,627,309.87/100,240.98
  6. Step 6: Final answer
    x = 75,773.67

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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.