Home / 143,953.36-198,669.66-107,591.56

Finding the Fourth Proportional to 143,953.36, 198,669.66 and 107,591.56

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Solution

The fourth proportional to 143,953.36, 198,669.66 and 107,591.56 is: 148,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,953.36 : 198,669.66 = 107,591.56 : x
  2. Step 2: Convert to fraction form
    143,953.36/198,669.66 = 107,591.56/x
  3. Step 3: Cross multiply
    143,953.36x = 198,669.66 × 107,591.56
  4. Step 4: Simplify right side
    143,953.36x = 21,375,178,644.07
  5. Step 5: Solve for x
    x = 21,375,178,644.07/143,953.36
  6. Step 6: Final answer
    x = 148,486.83

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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.