Home / 145,376.20-218,078.70-50,591.80

Finding the Fourth Proportional to 145,376.20, 218,078.70 and 50,591.80

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Solution

The fourth proportional to 145,376.20, 218,078.70 and 50,591.80 is: 75,892.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,376.20 : 218,078.70 = 50,591.80 : x
  2. Step 2: Convert to fraction form
    145,376.20/218,078.70 = 50,591.80/x
  3. Step 3: Cross multiply
    145,376.20x = 218,078.70 × 50,591.80
  4. Step 4: Simplify right side
    145,376.20x = 11,032,993,974.66
  5. Step 5: Solve for x
    x = 11,032,993,974.66/145,376.20
  6. Step 6: Final answer
    x = 75,892.71

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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.