Home / 343,949.40-515,927.34-104,065.20

Finding the Fourth Proportional to 343,949.40, 515,927.34 and 104,065.20

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Solution

The fourth proportional to 343,949.40, 515,927.34 and 104,065.20 is: 156,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,949.40 : 515,927.34 = 104,065.20 : x
  2. Step 2: Convert to fraction form
    343,949.40/515,927.34 = 104,065.20/x
  3. Step 3: Cross multiply
    343,949.40x = 515,927.34 × 104,065.20
  4. Step 4: Simplify right side
    343,949.40x = 53,690,081,822.57
  5. Step 5: Solve for x
    x = 53,690,081,822.57/343,949.40
  6. Step 6: Final answer
    x = 156,098.78

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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.