Home / 165,142.20-227,901.60-93,520.68

Finding the Fourth Proportional to 165,142.20, 227,901.60 and 93,520.68

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Solution

The fourth proportional to 165,142.20, 227,901.60 and 93,520.68 is: 129,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,142.20 : 227,901.60 = 93,520.68 : x
  2. Step 2: Convert to fraction form
    165,142.20/227,901.60 = 93,520.68/x
  3. Step 3: Cross multiply
    165,142.20x = 227,901.60 × 93,520.68
  4. Step 4: Simplify right side
    165,142.20x = 21,313,512,605.09
  5. Step 5: Solve for x
    x = 21,313,512,605.09/165,142.20
  6. Step 6: Final answer
    x = 129,061.58

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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.