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Finding the Fourth Proportional to 100,765.30, 151,245.15 and 50,901.70

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Solution

The fourth proportional to 100,765.30, 151,245.15 and 50,901.70 is: 76,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,765.30 : 151,245.15 = 50,901.70 : x
  2. Step 2: Convert to fraction form
    100,765.30/151,245.15 = 50,901.70/x
  3. Step 3: Cross multiply
    100,765.30x = 151,245.15 × 50,901.70
  4. Step 4: Simplify right side
    100,765.30x = 7,698,635,251.76
  5. Step 5: Solve for x
    x = 7,698,635,251.76/100,765.30
  6. Step 6: Final answer
    x = 76,401.65

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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.