Home / 140,435.78-193,778.73-80,007.35

Finding the Fourth Proportional to 140,435.78, 193,778.73 and 80,007.35

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Solution

The fourth proportional to 140,435.78, 193,778.73 and 80,007.35 is: 110,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,435.78 : 193,778.73 = 80,007.35 : x
  2. Step 2: Convert to fraction form
    140,435.78/193,778.73 = 80,007.35/x
  3. Step 3: Cross multiply
    140,435.78x = 193,778.73 × 80,007.35
  4. Step 4: Simplify right side
    140,435.78x = 15,503,721,704.77
  5. Step 5: Solve for x
    x = 15,503,721,704.77/140,435.78
  6. Step 6: Final answer
    x = 110,397.24

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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.