Home / 239,690.19-330,761.34-137,643.83

Finding the Fourth Proportional to 239,690.19, 330,761.34 and 137,643.83

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Solution

The fourth proportional to 239,690.19, 330,761.34 and 137,643.83 is: 189,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,690.19 : 330,761.34 = 137,643.83 : x
  2. Step 2: Convert to fraction form
    239,690.19/330,761.34 = 137,643.83/x
  3. Step 3: Cross multiply
    239,690.19x = 330,761.34 × 137,643.83
  4. Step 4: Simplify right side
    239,690.19x = 45,527,255,999.73
  5. Step 5: Solve for x
    x = 45,527,255,999.73/239,690.19
  6. Step 6: Final answer
    x = 189,942.09

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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.