Home / 158,724.97-219,033.25-87,103.56

Finding the Fourth Proportional to 158,724.97, 219,033.25 and 87,103.56

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Solution

The fourth proportional to 158,724.97, 219,033.25 and 87,103.56 is: 120,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,724.97 : 219,033.25 = 87,103.56 : x
  2. Step 2: Convert to fraction form
    158,724.97/219,033.25 = 87,103.56/x
  3. Step 3: Cross multiply
    158,724.97x = 219,033.25 × 87,103.56
  4. Step 4: Simplify right side
    158,724.97x = 19,078,575,833.37
  5. Step 5: Solve for x
    x = 19,078,575,833.37/158,724.97
  6. Step 6: Final answer
    x = 120,198.96

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1.5x scale

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.