Home / 143,743.41-198,357.65-82,476.63

Finding the Fourth Proportional to 143,743.41, 198,357.65 and 82,476.63

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Solution

The fourth proportional to 143,743.41, 198,357.65 and 82,476.63 is: 113,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,743.41 : 198,357.65 = 82,476.63 : x
  2. Step 2: Convert to fraction form
    143,743.41/198,357.65 = 82,476.63/x
  3. Step 3: Cross multiply
    143,743.41x = 198,357.65 × 82,476.63
  4. Step 4: Simplify right side
    143,743.41x = 16,359,869,659.78
  5. Step 5: Solve for x
    x = 16,359,869,659.78/143,743.41
  6. Step 6: Final answer
    x = 113,813.01

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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.