Home / 165,214.60-227,996.10-89,763.40

Finding the Fourth Proportional to 165,214.60, 227,996.10 and 89,763.40

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Solution

The fourth proportional to 165,214.60, 227,996.10 and 89,763.40 is: 123,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,214.60 : 227,996.10 = 89,763.40 : x
  2. Step 2: Convert to fraction form
    165,214.60/227,996.10 = 89,763.40/x
  3. Step 3: Cross multiply
    165,214.60x = 227,996.10 × 89,763.40
  4. Step 4: Simplify right side
    165,214.60x = 20,465,705,122.74
  5. Step 5: Solve for x
    x = 20,465,705,122.74/165,214.60
  6. Step 6: Final answer
    x = 123,873.47

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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.