Home / 143,887.60-198,555.56-80,221.60

Finding the Fourth Proportional to 143,887.60, 198,555.56 and 80,221.60

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Solution

The fourth proportional to 143,887.60, 198,555.56 and 80,221.60 is: 110,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,887.60 : 198,555.56 = 80,221.60 : x
  2. Step 2: Convert to fraction form
    143,887.60/198,555.56 = 80,221.60/x
  3. Step 3: Cross multiply
    143,887.60x = 198,555.56 × 80,221.60
  4. Step 4: Simplify right side
    143,887.60x = 15,928,444,712.10
  5. Step 5: Solve for x
    x = 15,928,444,712.10/143,887.60
  6. Step 6: Final answer
    x = 110,700.61

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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.