Home / 193,890.28-290,990.96-100,422.76

Finding the Fourth Proportional to 193,890.28, 290,990.96 and 100,422.76

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Solution

The fourth proportional to 193,890.28, 290,990.96 and 100,422.76 is: 150,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,890.28 : 290,990.96 = 100,422.76 : x
  2. Step 2: Convert to fraction form
    193,890.28/290,990.96 = 100,422.76/x
  3. Step 3: Cross multiply
    193,890.28x = 290,990.96 × 100,422.76
  4. Step 4: Simplify right side
    193,890.28x = 29,222,115,338.25
  5. Step 5: Solve for x
    x = 29,222,115,338.25/193,890.28
  6. Step 6: Final answer
    x = 150,714.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.