Home / 190,228.87-262,456.11-109,645.21

Finding the Fourth Proportional to 190,228.87, 262,456.11 and 109,645.21

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Solution

The fourth proportional to 190,228.87, 262,456.11 and 109,645.21 is: 151,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,228.87 : 262,456.11 = 109,645.21 : x
  2. Step 2: Convert to fraction form
    190,228.87/262,456.11 = 109,645.21/x
  3. Step 3: Cross multiply
    190,228.87x = 262,456.11 × 109,645.21
  4. Step 4: Simplify right side
    190,228.87x = 28,777,054,640.59
  5. Step 5: Solve for x
    x = 28,777,054,640.59/190,228.87
  6. Step 6: Final answer
    x = 151,275.96

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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.