Home / 143,816.16-198,460.80-80,150.88

Finding the Fourth Proportional to 143,816.16, 198,460.80 and 80,150.88

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Solution

The fourth proportional to 143,816.16, 198,460.80 and 80,150.88 is: 110,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,816.16 : 198,460.80 = 80,150.88 : x
  2. Step 2: Convert to fraction form
    143,816.16/198,460.80 = 80,150.88/x
  3. Step 3: Cross multiply
    143,816.16x = 198,460.80 × 80,150.88
  4. Step 4: Simplify right side
    143,816.16x = 15,906,807,765.50
  5. Step 5: Solve for x
    x = 15,906,807,765.50/143,816.16
  6. Step 6: Final answer
    x = 110,605.15

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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.