Home / 239,122.67-329,976.63-137,142.89

Finding the Fourth Proportional to 239,122.67, 329,976.63 and 137,142.89

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Solution

The fourth proportional to 239,122.67, 329,976.63 and 137,142.89 is: 189,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,122.67 : 329,976.63 = 137,142.89 : x
  2. Step 2: Convert to fraction form
    239,122.67/329,976.63 = 137,142.89/x
  3. Step 3: Cross multiply
    239,122.67x = 329,976.63 × 137,142.89
  4. Step 4: Simplify right side
    239,122.67x = 45,253,946,335.06
  5. Step 5: Solve for x
    x = 45,253,946,335.06/239,122.67
  6. Step 6: Final answer
    x = 189,249.92

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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.