Home / 250,721.19-345,974.49-137,543.94

Finding the Fourth Proportional to 250,721.19, 345,974.49 and 137,543.94

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Solution

The fourth proportional to 250,721.19, 345,974.49 and 137,543.94 is: 189,799.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,721.19 : 345,974.49 = 137,543.94 : x
  2. Step 2: Convert to fraction form
    250,721.19/345,974.49 = 137,543.94/x
  3. Step 3: Cross multiply
    250,721.19x = 345,974.49 × 137,543.94
  4. Step 4: Simplify right side
    250,721.19x = 47,586,694,494.09
  5. Step 5: Solve for x
    x = 47,586,694,494.09/250,721.19
  6. Step 6: Final answer
    x = 189,799.25

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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.