Home / 250,719.88-345,999.06-137,542.12

Finding the Fourth Proportional to 250,719.88, 345,999.06 and 137,542.12

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Solution

The fourth proportional to 250,719.88, 345,999.06 and 137,542.12 is: 189,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,719.88 : 345,999.06 = 137,542.12 : x
  2. Step 2: Convert to fraction form
    250,719.88/345,999.06 = 137,542.12/x
  3. Step 3: Cross multiply
    250,719.88x = 345,999.06 × 137,542.12
  4. Step 4: Simplify right side
    250,719.88x = 47,589,444,230.41
  5. Step 5: Solve for x
    x = 47,589,444,230.41/250,719.88
  6. Step 6: Final answer
    x = 189,811.21

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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.