Home / 158,965.87-219,372.27-90,982.57

Finding the Fourth Proportional to 158,965.87, 219,372.27 and 90,982.57

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Solution

The fourth proportional to 158,965.87, 219,372.27 and 90,982.57 is: 125,555.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,965.87 : 219,372.27 = 90,982.57 : x
  2. Step 2: Convert to fraction form
    158,965.87/219,372.27 = 90,982.57/x
  3. Step 3: Cross multiply
    158,965.87x = 219,372.27 × 90,982.57
  4. Step 4: Simplify right side
    158,965.87x = 19,959,051,814.47
  5. Step 5: Solve for x
    x = 19,959,051,814.47/158,965.87
  6. Step 6: Final answer
    x = 125,555.58

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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.