Home / 143,705.61-198,319.86-80,043.44

Finding the Fourth Proportional to 143,705.61, 198,319.86 and 80,043.44

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Solution

The fourth proportional to 143,705.61, 198,319.86 and 80,043.44 is: 110,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,705.61 : 198,319.86 = 80,043.44 : x
  2. Step 2: Convert to fraction form
    143,705.61/198,319.86 = 80,043.44/x
  3. Step 3: Cross multiply
    143,705.61x = 198,319.86 × 80,043.44
  4. Step 4: Simplify right side
    143,705.61x = 15,874,202,823.12
  5. Step 5: Solve for x
    x = 15,874,202,823.12/143,705.61
  6. Step 6: Final answer
    x = 110,463.35

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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.