Home / 190,206.11-262,481.23-105,321.35

Finding the Fourth Proportional to 190,206.11, 262,481.23 and 105,321.35

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Solution

The fourth proportional to 190,206.11, 262,481.23 and 105,321.35 is: 145,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,206.11 : 262,481.23 = 105,321.35 : x
  2. Step 2: Convert to fraction form
    190,206.11/262,481.23 = 105,321.35/x
  3. Step 3: Cross multiply
    190,206.11x = 262,481.23 × 105,321.35
  4. Step 4: Simplify right side
    190,206.11x = 27,644,876,966.65
  5. Step 5: Solve for x
    x = 27,644,876,966.65/190,206.11
  6. Step 6: Final answer
    x = 145,341.69

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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.