Home / 143,784.83-198,427.05-82,536.30

Finding the Fourth Proportional to 143,784.83, 198,427.05 and 82,536.30

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Solution

The fourth proportional to 143,784.83, 198,427.05 and 82,536.30 is: 113,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,784.83 : 198,427.05 = 82,536.30 : x
  2. Step 2: Convert to fraction form
    143,784.83/198,427.05 = 82,536.30/x
  3. Step 3: Cross multiply
    143,784.83x = 198,427.05 × 82,536.30
  4. Step 4: Simplify right side
    143,784.83x = 16,377,434,526.92
  5. Step 5: Solve for x
    x = 16,377,434,526.92/143,784.83
  6. Step 6: Final answer
    x = 113,902.38

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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.