Home / 239,789.70-330,920.78-137,848.14

Finding the Fourth Proportional to 239,789.70, 330,920.78 and 137,848.14

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Solution

The fourth proportional to 239,789.70, 330,920.78 and 137,848.14 is: 190,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,789.70 : 330,920.78 = 137,848.14 : x
  2. Step 2: Convert to fraction form
    239,789.70/330,920.78 = 137,848.14/x
  3. Step 3: Cross multiply
    239,789.70x = 330,920.78 × 137,848.14
  4. Step 4: Simplify right side
    239,789.70x = 45,616,813,321.11
  5. Step 5: Solve for x
    x = 45,616,813,321.11/239,789.70
  6. Step 6: Final answer
    x = 190,236.75

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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.