Home / 116,947.56-161,350.80-71,578.25

Finding the Fourth Proportional to 116,947.56, 161,350.80 and 71,578.25

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Solution

The fourth proportional to 116,947.56, 161,350.80 and 71,578.25 is: 98,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,947.56 : 161,350.80 = 71,578.25 : x
  2. Step 2: Convert to fraction form
    116,947.56/161,350.80 = 71,578.25/x
  3. Step 3: Cross multiply
    116,947.56x = 161,350.80 × 71,578.25
  4. Step 4: Simplify right side
    116,947.56x = 11,549,207,138.83
  5. Step 5: Solve for x
    x = 11,549,207,138.83/116,947.56
  6. Step 6: Final answer
    x = 98,755.43

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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.