Home / 265,735.20-398,710.32-107,922.72

Finding the Fourth Proportional to 265,735.20, 398,710.32 and 107,922.72

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Solution

The fourth proportional to 265,735.20, 398,710.32 and 107,922.72 is: 161,927.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,735.20 : 398,710.32 = 107,922.72 : x
  2. Step 2: Convert to fraction form
    265,735.20/398,710.32 = 107,922.72/x
  3. Step 3: Cross multiply
    265,735.20x = 398,710.32 × 107,922.72
  4. Step 4: Simplify right side
    265,735.20x = 43,029,902,226.47
  5. Step 5: Solve for x
    x = 43,029,902,226.47/265,735.20
  6. Step 6: Final answer
    x = 161,927.75

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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.