Home / 239,217.42-330,107.78-131,785.10

Finding the Fourth Proportional to 239,217.42, 330,107.78 and 131,785.10

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Solution

The fourth proportional to 239,217.42, 330,107.78 and 131,785.10 is: 181,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,217.42 : 330,107.78 = 131,785.10 : x
  2. Step 2: Convert to fraction form
    239,217.42/330,107.78 = 131,785.10/x
  3. Step 3: Cross multiply
    239,217.42x = 330,107.78 × 131,785.10
  4. Step 4: Simplify right side
    239,217.42x = 43,503,286,798.08
  5. Step 5: Solve for x
    x = 43,503,286,798.08/239,217.42
  6. Step 6: Final answer
    x = 181,856.68

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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.