Home / 143,749.01-198,379.77-80,086.79

Finding the Fourth Proportional to 143,749.01, 198,379.77 and 80,086.79

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Solution

The fourth proportional to 143,749.01, 198,379.77 and 80,086.79 is: 110,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,749.01 : 198,379.77 = 80,086.79 : x
  2. Step 2: Convert to fraction form
    143,749.01/198,379.77 = 80,086.79/x
  3. Step 3: Cross multiply
    143,749.01x = 198,379.77 × 80,086.79
  4. Step 4: Simplify right side
    143,749.01x = 15,887,598,980.24
  5. Step 5: Solve for x
    x = 15,887,598,980.24/143,749.01
  6. Step 6: Final answer
    x = 110,523.19

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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.