Home / 150,682.13-207,951.05-83,614.13

Finding the Fourth Proportional to 150,682.13, 207,951.05 and 83,614.13

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Solution

The fourth proportional to 150,682.13, 207,951.05 and 83,614.13 is: 115,392.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,682.13 : 207,951.05 = 83,614.13 : x
  2. Step 2: Convert to fraction form
    150,682.13/207,951.05 = 83,614.13/x
  3. Step 3: Cross multiply
    150,682.13x = 207,951.05 × 83,614.13
  4. Step 4: Simplify right side
    150,682.13x = 17,387,646,128.34
  5. Step 5: Solve for x
    x = 17,387,646,128.34/150,682.13
  6. Step 6: Final answer
    x = 115,392.89

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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.