Home / 218,837.12-301,961.76-123,342.08

Finding the Fourth Proportional to 218,837.12, 301,961.76 and 123,342.08

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Solution

The fourth proportional to 218,837.12, 301,961.76 and 123,342.08 is: 170,193.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,837.12 : 301,961.76 = 123,342.08 : x
  2. Step 2: Convert to fraction form
    218,837.12/301,961.76 = 123,342.08/x
  3. Step 3: Cross multiply
    218,837.12x = 301,961.76 × 123,342.08
  4. Step 4: Simplify right side
    218,837.12x = 37,244,591,558.86
  5. Step 5: Solve for x
    x = 37,244,591,558.86/218,837.12
  6. Step 6: Final answer
    x = 170,193.21

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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.