Home / 150,023.15-207,028.81-82,039.36

Finding the Fourth Proportional to 150,023.15, 207,028.81 and 82,039.36

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Solution

The fourth proportional to 150,023.15, 207,028.81 and 82,039.36 is: 113,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,023.15 : 207,028.81 = 82,039.36 : x
  2. Step 2: Convert to fraction form
    150,023.15/207,028.81 = 82,039.36/x
  3. Step 3: Cross multiply
    150,023.15x = 207,028.81 × 82,039.36
  4. Step 4: Simplify right side
    150,023.15x = 16,984,511,073.96
  5. Step 5: Solve for x
    x = 16,984,511,073.96/150,023.15
  6. Step 6: Final answer
    x = 113,212.60

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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.