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Finding the Fourth Proportional to 179,565.98, 247,801.56 and 107,987

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Solution

The fourth proportional to 179,565.98, 247,801.56 and 107,987 is: 149,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,565.98 : 247,801.56 = 107,987 : x
  2. Step 2: Convert to fraction form
    179,565.98/247,801.56 = 107,987/x
  3. Step 3: Cross multiply
    179,565.98x = 247,801.56 × 107,987
  4. Step 4: Simplify right side
    179,565.98x = 26,759,347,059.72
  5. Step 5: Solve for x
    x = 26,759,347,059.72/179,565.98
  6. Step 6: Final answer
    x = 149,022.37

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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.