Home / 143,749.35-198,374.31-80,089.38

Finding the Fourth Proportional to 143,749.35, 198,374.31 and 80,089.38

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Solution

The fourth proportional to 143,749.35, 198,374.31 and 80,089.38 is: 110,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,749.35 : 198,374.31 = 80,089.38 : x
  2. Step 2: Convert to fraction form
    143,749.35/198,374.31 = 80,089.38/x
  3. Step 3: Cross multiply
    143,749.35x = 198,374.31 × 80,089.38
  4. Step 4: Simplify right side
    143,749.35x = 15,887,675,495.83
  5. Step 5: Solve for x
    x = 15,887,675,495.83/143,749.35
  6. Step 6: Final answer
    x = 110,523.46

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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.