Home / 190,206.25-262,481.40-105,321.49

Finding the Fourth Proportional to 190,206.25, 262,481.40 and 105,321.49

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Solution

The fourth proportional to 190,206.25, 262,481.40 and 105,321.49 is: 145,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,206.25 : 262,481.40 = 105,321.49 : x
  2. Step 2: Convert to fraction form
    190,206.25/262,481.40 = 105,321.49/x
  3. Step 3: Cross multiply
    190,206.25x = 262,481.40 × 105,321.49
  4. Step 4: Simplify right side
    190,206.25x = 27,644,930,832.88
  5. Step 5: Solve for x
    x = 27,644,930,832.88/190,206.25
  6. Step 6: Final answer
    x = 145,341.87

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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.