Home / 150,161.09-207,219.53-82,176.69

Finding the Fourth Proportional to 150,161.09, 207,219.53 and 82,176.69

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Solution

The fourth proportional to 150,161.09, 207,219.53 and 82,176.69 is: 113,402.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,161.09 : 207,219.53 = 82,176.69 : x
  2. Step 2: Convert to fraction form
    150,161.09/207,219.53 = 82,176.69/x
  3. Step 3: Cross multiply
    150,161.09x = 207,219.53 × 82,176.69
  4. Step 4: Simplify right side
    150,161.09x = 17,028,615,078.76
  5. Step 5: Solve for x
    x = 17,028,615,078.76/150,161.09
  6. Step 6: Final answer
    x = 113,402.31

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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.