Home / 116,947.80-161,351.13-71,578.49

Finding the Fourth Proportional to 116,947.80, 161,351.13 and 71,578.49

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Solution

The fourth proportional to 116,947.80, 161,351.13 and 71,578.49 is: 98,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,947.80 : 161,351.13 = 71,578.49 : x
  2. Step 2: Convert to fraction form
    116,947.80/161,351.13 = 71,578.49/x
  3. Step 3: Cross multiply
    116,947.80x = 161,351.13 × 71,578.49
  4. Step 4: Simplify right side
    116,947.80x = 11,549,270,245.19
  5. Step 5: Solve for x
    x = 11,549,270,245.19/116,947.80
  6. Step 6: Final answer
    x = 98,755.77

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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.