Home / 143,629.54-198,023.50-117,691.65

Finding the Fourth Proportional to 143,629.54, 198,023.50 and 117,691.65

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Solution

The fourth proportional to 143,629.54, 198,023.50 and 117,691.65 is: 162,262.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,629.54 : 198,023.50 = 117,691.65 : x
  2. Step 2: Convert to fraction form
    143,629.54/198,023.50 = 117,691.65/x
  3. Step 3: Cross multiply
    143,629.54x = 198,023.50 × 117,691.65
  4. Step 4: Simplify right side
    143,629.54x = 23,305,712,600.89
  5. Step 5: Solve for x
    x = 23,305,712,600.89/143,629.54
  6. Step 6: Final answer
    x = 162,262.67

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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.