Home / 143,954.02-198,656.85-80,290.18

Finding the Fourth Proportional to 143,954.02, 198,656.85 and 80,290.18

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Solution

The fourth proportional to 143,954.02, 198,656.85 and 80,290.18 is: 110,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,954.02 : 198,656.85 = 80,290.18 : x
  2. Step 2: Convert to fraction form
    143,954.02/198,656.85 = 80,290.18/x
  3. Step 3: Cross multiply
    143,954.02x = 198,656.85 × 80,290.18
  4. Step 4: Simplify right side
    143,954.02x = 15,950,194,244.73
  5. Step 5: Solve for x
    x = 15,950,194,244.73/143,954.02
  6. Step 6: Final answer
    x = 110,800.62

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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.