Home / 167,557.56-251,418.32-78,820.02

Finding the Fourth Proportional to 167,557.56, 251,418.32 and 78,820.02

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Solution

The fourth proportional to 167,557.56, 251,418.32 and 78,820.02 is: 118,268.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,557.56 : 251,418.32 = 78,820.02 : x
  2. Step 2: Convert to fraction form
    167,557.56/251,418.32 = 78,820.02/x
  3. Step 3: Cross multiply
    167,557.56x = 251,418.32 × 78,820.02
  4. Step 4: Simplify right side
    167,557.56x = 19,816,797,010.77
  5. Step 5: Solve for x
    x = 19,816,797,010.77/167,557.56
  6. Step 6: Final answer
    x = 118,268.59

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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.