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Finding the Fourth Proportional to 126,482.20, 189,593.70 and 73,864.60

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Solution

The fourth proportional to 126,482.20, 189,593.70 and 73,864.60 is: 110,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,482.20 : 189,593.70 = 73,864.60 : x
  2. Step 2: Convert to fraction form
    126,482.20/189,593.70 = 73,864.60/x
  3. Step 3: Cross multiply
    126,482.20x = 189,593.70 × 73,864.60
  4. Step 4: Simplify right side
    126,482.20x = 14,004,262,813.02
  5. Step 5: Solve for x
    x = 14,004,262,813.02/126,482.20
  6. Step 6: Final answer
    x = 110,721.21

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