Home / 147,067.58-220,308.86-115,328.75

Finding the Fourth Proportional to 147,067.58, 220,308.86 and 115,328.75

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Solution

The fourth proportional to 147,067.58, 220,308.86 and 115,328.75 is: 172,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,067.58 : 220,308.86 = 115,328.75 : x
  2. Step 2: Convert to fraction form
    147,067.58/220,308.86 = 115,328.75/x
  3. Step 3: Cross multiply
    147,067.58x = 220,308.86 × 115,328.75
  4. Step 4: Simplify right side
    147,067.58x = 25,407,943,759.54
  5. Step 5: Solve for x
    x = 25,407,943,759.54/147,067.58
  6. Step 6: Final answer
    x = 172,763.74

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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.