Home / 143,864.80-198,533.55-80,201.20

Finding the Fourth Proportional to 143,864.80, 198,533.55 and 80,201.20

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Solution

The fourth proportional to 143,864.80, 198,533.55 and 80,201.20 is: 110,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.80 : 198,533.55 = 80,201.20 : x
  2. Step 2: Convert to fraction form
    143,864.80/198,533.55 = 80,201.20/x
  3. Step 3: Cross multiply
    143,864.80x = 198,533.55 × 80,201.20
  4. Step 4: Simplify right side
    143,864.80x = 15,922,628,950.26
  5. Step 5: Solve for x
    x = 15,922,628,950.26/143,864.80
  6. Step 6: Final answer
    x = 110,677.73

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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.