Home / 143,949.54-198,689.88-83,539.62

Finding the Fourth Proportional to 143,949.54, 198,689.88 and 83,539.62

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Solution

The fourth proportional to 143,949.54, 198,689.88 and 83,539.62 is: 115,307.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,949.54 : 198,689.88 = 83,539.62 : x
  2. Step 2: Convert to fraction form
    143,949.54/198,689.88 = 83,539.62/x
  3. Step 3: Cross multiply
    143,949.54x = 198,689.88 × 83,539.62
  4. Step 4: Simplify right side
    143,949.54x = 16,598,477,073.05
  5. Step 5: Solve for x
    x = 16,598,477,073.05/143,949.54
  6. Step 6: Final answer
    x = 115,307.61

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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.