Home / 190,786.92-286,180.38-66,127.92

Finding the Fourth Proportional to 190,786.92, 286,180.38 and 66,127.92

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Solution

The fourth proportional to 190,786.92, 286,180.38 and 66,127.92 is: 99,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,786.92 : 286,180.38 = 66,127.92 : x
  2. Step 2: Convert to fraction form
    190,786.92/286,180.38 = 66,127.92/x
  3. Step 3: Cross multiply
    190,786.92x = 286,180.38 × 66,127.92
  4. Step 4: Simplify right side
    190,786.92x = 18,924,513,274.21
  5. Step 5: Solve for x
    x = 18,924,513,274.21/190,786.92
  6. Step 6: Final answer
    x = 99,191.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.