Home / 143,701.73-198,308.44-83,307.38

Finding the Fourth Proportional to 143,701.73, 198,308.44 and 83,307.38

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Solution

The fourth proportional to 143,701.73, 198,308.44 and 83,307.38 is: 114,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,701.73 : 198,308.44 = 83,307.38 : x
  2. Step 2: Convert to fraction form
    143,701.73/198,308.44 = 83,307.38/x
  3. Step 3: Cross multiply
    143,701.73x = 198,308.44 × 83,307.38
  4. Step 4: Simplify right side
    143,701.73x = 16,520,555,655.98
  5. Step 5: Solve for x
    x = 16,520,555,655.98/143,701.73
  6. Step 6: Final answer
    x = 114,964.21

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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.