Home / 239,976.76-331,210.44-137,994.31

Finding the Fourth Proportional to 239,976.76, 331,210.44 and 137,994.31

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Solution

The fourth proportional to 239,976.76, 331,210.44 and 137,994.31 is: 190,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,976.76 : 331,210.44 = 137,994.31 : x
  2. Step 2: Convert to fraction form
    239,976.76/331,210.44 = 137,994.31/x
  3. Step 3: Cross multiply
    239,976.76x = 331,210.44 × 137,994.31
  4. Step 4: Simplify right side
    239,976.76x = 45,705,156,132.60
  5. Step 5: Solve for x
    x = 45,705,156,132.60/239,976.76
  6. Step 6: Final answer
    x = 190,456.59

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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.