Home / 108,015.20-161,763.60-52,546.40

Finding the Fourth Proportional to 108,015.20, 161,763.60 and 52,546.40

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Solution

The fourth proportional to 108,015.20, 161,763.60 and 52,546.40 is: 78,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,015.20 : 161,763.60 = 52,546.40 : x
  2. Step 2: Convert to fraction form
    108,015.20/161,763.60 = 52,546.40/x
  3. Step 3: Cross multiply
    108,015.20x = 161,763.60 × 52,546.40
  4. Step 4: Simplify right side
    108,015.20x = 8,500,094,831.04
  5. Step 5: Solve for x
    x = 8,500,094,831.04/108,015.20
  6. Step 6: Final answer
    x = 78,693.51

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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.