Home / 150,078.07-207,099.96-82,081.81

Finding the Fourth Proportional to 150,078.07, 207,099.96 and 82,081.81

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Solution

The fourth proportional to 150,078.07, 207,099.96 and 82,081.81 is: 113,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,078.07 : 207,099.96 = 82,081.81 : x
  2. Step 2: Convert to fraction form
    150,078.07/207,099.96 = 82,081.81/x
  3. Step 3: Cross multiply
    150,078.07x = 207,099.96 × 82,081.81
  4. Step 4: Simplify right side
    150,078.07x = 16,999,139,567.73
  5. Step 5: Solve for x
    x = 16,999,139,567.73/150,078.07
  6. Step 6: Final answer
    x = 113,268.64

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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.