Home / 143,760.43-198,195.83-100,681.93

Finding the Fourth Proportional to 143,760.43, 198,195.83 and 100,681.93

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Solution

The fourth proportional to 143,760.43, 198,195.83 and 100,681.93 is: 138,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,760.43 : 198,195.83 = 100,681.93 : x
  2. Step 2: Convert to fraction form
    143,760.43/198,195.83 = 100,681.93/x
  3. Step 3: Cross multiply
    143,760.43x = 198,195.83 × 100,681.93
  4. Step 4: Simplify right side
    143,760.43x = 19,954,738,178.94
  5. Step 5: Solve for x
    x = 19,954,738,178.94/143,760.43
  6. Step 6: Final answer
    x = 138,805.50

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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.