Home / 165,157.82-247,741.86-78,584.71

Finding the Fourth Proportional to 165,157.82, 247,741.86 and 78,584.71

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Solution

The fourth proportional to 165,157.82, 247,741.86 and 78,584.71 is: 117,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,157.82 : 247,741.86 = 78,584.71 : x
  2. Step 2: Convert to fraction form
    165,157.82/247,741.86 = 78,584.71/x
  3. Step 3: Cross multiply
    165,157.82x = 247,741.86 × 78,584.71
  4. Step 4: Simplify right side
    165,157.82x = 19,468,722,222.96
  5. Step 5: Solve for x
    x = 19,468,722,222.96/165,157.82
  6. Step 6: Final answer
    x = 117,879.51

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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.