Home / 100,327.82-138,450.53-55,006.13

Finding the Fourth Proportional to 100,327.82, 138,450.53 and 55,006.13

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Solution

The fourth proportional to 100,327.82, 138,450.53 and 55,006.13 is: 75,907.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,327.82 : 138,450.53 = 55,006.13 : x
  2. Step 2: Convert to fraction form
    100,327.82/138,450.53 = 55,006.13/x
  3. Step 3: Cross multiply
    100,327.82x = 138,450.53 × 55,006.13
  4. Step 4: Simplify right side
    100,327.82x = 7,615,626,884.47
  5. Step 5: Solve for x
    x = 7,615,626,884.47/100,327.82
  6. Step 6: Final answer
    x = 75,907.43

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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.