Home / 218,665.16-301,704.88-123,171.80

Finding the Fourth Proportional to 218,665.16, 301,704.88 and 123,171.80

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Solution

The fourth proportional to 218,665.16, 301,704.88 and 123,171.80 is: 169,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,665.16 : 301,704.88 = 123,171.80 : x
  2. Step 2: Convert to fraction form
    218,665.16/301,704.88 = 123,171.80/x
  3. Step 3: Cross multiply
    218,665.16x = 301,704.88 × 123,171.80
  4. Step 4: Simplify right side
    218,665.16x = 37,161,533,138.38
  5. Step 5: Solve for x
    x = 37,161,533,138.38/218,665.16
  6. Step 6: Final answer
    x = 169,947.21

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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.