Home / 143,705.68-198,304.25-83,265.55

Finding the Fourth Proportional to 143,705.68, 198,304.25 and 83,265.55

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Solution

The fourth proportional to 143,705.68, 198,304.25 and 83,265.55 is: 114,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,705.68 : 198,304.25 = 83,265.55 : x
  2. Step 2: Convert to fraction form
    143,705.68/198,304.25 = 83,265.55/x
  3. Step 3: Cross multiply
    143,705.68x = 198,304.25 × 83,265.55
  4. Step 4: Simplify right side
    143,705.68x = 16,511,911,531.50
  5. Step 5: Solve for x
    x = 16,511,911,531.50/143,705.68
  6. Step 6: Final answer
    x = 114,900.90

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1.5x scale

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.