Home / 239,489.06-330,483.65-137,443.64

Finding the Fourth Proportional to 239,489.06, 330,483.65 and 137,443.64

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Solution

The fourth proportional to 239,489.06, 330,483.65 and 137,443.64 is: 189,665.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,489.06 : 330,483.65 = 137,443.64 : x
  2. Step 2: Convert to fraction form
    239,489.06/330,483.65 = 137,443.64/x
  3. Step 3: Cross multiply
    239,489.06x = 330,483.65 × 137,443.64
  4. Step 4: Simplify right side
    239,489.06x = 45,422,873,476.85
  5. Step 5: Solve for x
    x = 45,422,873,476.85/239,489.06
  6. Step 6: Final answer
    x = 189,665.76

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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.