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Finding the Fourth Proportional to 150,133.68, 225,200.88 and 121,919.76

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Solution

The fourth proportional to 150,133.68, 225,200.88 and 121,919.76 is: 182,879.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,133.68 : 225,200.88 = 121,919.76 : x
  2. Step 2: Convert to fraction form
    150,133.68/225,200.88 = 121,919.76/x
  3. Step 3: Cross multiply
    150,133.68x = 225,200.88 × 121,919.76
  4. Step 4: Simplify right side
    150,133.68x = 27,456,437,241.39
  5. Step 5: Solve for x
    x = 27,456,437,241.39/150,133.68
  6. Step 6: Final answer
    x = 182,879.93

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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.