Home / 190,401.75-262,782.45-109,813.62

Finding the Fourth Proportional to 190,401.75, 262,782.45 and 109,813.62

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Solution

The fourth proportional to 190,401.75, 262,782.45 and 109,813.62 is: 151,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,401.75 : 262,782.45 = 109,813.62 : x
  2. Step 2: Convert to fraction form
    190,401.75/262,782.45 = 109,813.62/x
  3. Step 3: Cross multiply
    190,401.75x = 262,782.45 × 109,813.62
  4. Step 4: Simplify right side
    190,401.75x = 28,857,092,106.97
  5. Step 5: Solve for x
    x = 28,857,092,106.97/190,401.75
  6. Step 6: Final answer
    x = 151,558.96

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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.