Home / 239,659.20-330,758.99-137,684.47

Finding the Fourth Proportional to 239,659.20, 330,758.99 and 137,684.47

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Solution

The fourth proportional to 239,659.20, 330,758.99 and 137,684.47 is: 190,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,659.20 : 330,758.99 = 137,684.47 : x
  2. Step 2: Convert to fraction form
    239,659.20/330,758.99 = 137,684.47/x
  3. Step 3: Cross multiply
    239,659.20x = 330,758.99 × 137,684.47
  4. Step 4: Simplify right side
    239,659.20x = 45,540,376,235.89
  5. Step 5: Solve for x
    x = 45,540,376,235.89/239,659.20
  6. Step 6: Final answer
    x = 190,021.40

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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.