Home / 213,968.10-320,876.19-79,003.32

Finding the Fourth Proportional to 213,968.10, 320,876.19 and 79,003.32

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Solution

The fourth proportional to 213,968.10, 320,876.19 and 79,003.32 is: 118,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,968.10 : 320,876.19 = 79,003.32 : x
  2. Step 2: Convert to fraction form
    213,968.10/320,876.19 = 79,003.32/x
  3. Step 3: Cross multiply
    213,968.10x = 320,876.19 × 79,003.32
  4. Step 4: Simplify right side
    213,968.10x = 25,350,284,318.95
  5. Step 5: Solve for x
    x = 25,350,284,318.95/213,968.10
  6. Step 6: Final answer
    x = 118,476.93

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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.