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Finding the Fourth Proportional to 181,187.10, 250,029.90 and 100,619.70

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Solution

The fourth proportional to 181,187.10, 250,029.90 and 100,619.70 is: 138,850.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,187.10 : 250,029.90 = 100,619.70 : x
  2. Step 2: Convert to fraction form
    181,187.10/250,029.90 = 100,619.70/x
  3. Step 3: Cross multiply
    181,187.10x = 250,029.90 × 100,619.70
  4. Step 4: Simplify right side
    181,187.10x = 25,157,933,529.03
  5. Step 5: Solve for x
    x = 25,157,933,529.03/181,187.10
  6. Step 6: Final answer
    x = 138,850.58

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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.