Home / 117,720.32-175,471.50-108,272.48

Finding the Fourth Proportional to 117,720.32, 175,471.50 and 108,272.48

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Solution

The fourth proportional to 117,720.32, 175,471.50 and 108,272.48 is: 161,388.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.32 : 175,471.50 = 108,272.48 : x
  2. Step 2: Convert to fraction form
    117,720.32/175,471.50 = 108,272.48/x
  3. Step 3: Cross multiply
    117,720.32x = 175,471.50 × 108,272.48
  4. Step 4: Simplify right side
    117,720.32x = 18,998,733,596.96
  5. Step 5: Solve for x
    x = 18,998,733,596.96/117,720.32
  6. Step 6: Final answer
    x = 161,388.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.