Home / 239,377.12-330,338.72-131,947.20

Finding the Fourth Proportional to 239,377.12, 330,338.72 and 131,947.20

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Solution

The fourth proportional to 239,377.12, 330,338.72 and 131,947.20 is: 182,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,377.12 : 330,338.72 = 131,947.20 : x
  2. Step 2: Convert to fraction form
    239,377.12/330,338.72 = 131,947.20/x
  3. Step 3: Cross multiply
    239,377.12x = 330,338.72 × 131,947.20
  4. Step 4: Simplify right side
    239,377.12x = 43,587,269,155.58
  5. Step 5: Solve for x
    x = 43,587,269,155.58/239,377.12
  6. Step 6: Final answer
    x = 182,086.20

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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.