Home / 100,180.73-138,244.05-54,850.03

Finding the Fourth Proportional to 100,180.73, 138,244.05 and 54,850.03

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Solution

The fourth proportional to 100,180.73, 138,244.05 and 54,850.03 is: 75,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,180.73 : 138,244.05 = 54,850.03 : x
  2. Step 2: Convert to fraction form
    100,180.73/138,244.05 = 54,850.03/x
  3. Step 3: Cross multiply
    100,180.73x = 138,244.05 × 54,850.03
  4. Step 4: Simplify right side
    100,180.73x = 7,582,689,944.21
  5. Step 5: Solve for x
    x = 7,582,689,944.21/100,180.73
  6. Step 6: Final answer
    x = 75,690.10

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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.