Home / 212,624.49-319,047.93-137,725.23

Finding the Fourth Proportional to 212,624.49, 319,047.93 and 137,725.23

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Solution

The fourth proportional to 212,624.49, 319,047.93 and 137,725.23 is: 206,659.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,624.49 : 319,047.93 = 137,725.23 : x
  2. Step 2: Convert to fraction form
    212,624.49/319,047.93 = 137,725.23/x
  3. Step 3: Cross multiply
    212,624.49x = 319,047.93 × 137,725.23
  4. Step 4: Simplify right side
    212,624.49x = 43,940,949,540.27
  5. Step 5: Solve for x
    x = 43,940,949,540.27/212,624.49
  6. Step 6: Final answer
    x = 206,659.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.