Home / 220,067.20-330,003.60-86,903.20

Finding the Fourth Proportional to 220,067.20, 330,003.60 and 86,903.20

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Solution

The fourth proportional to 220,067.20, 330,003.60 and 86,903.20 is: 130,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,067.20 : 330,003.60 = 86,903.20 : x
  2. Step 2: Convert to fraction form
    220,067.20/330,003.60 = 86,903.20/x
  3. Step 3: Cross multiply
    220,067.20x = 330,003.60 × 86,903.20
  4. Step 4: Simplify right side
    220,067.20x = 28,678,368,851.52
  5. Step 5: Solve for x
    x = 28,678,368,851.52/220,067.20
  6. Step 6: Final answer
    x = 130,316.42

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1.5x scale

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.