Home / 143,442.48-197,957.64-79,778.92

Finding the Fourth Proportional to 143,442.48, 197,957.64 and 79,778.92

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Solution

The fourth proportional to 143,442.48, 197,957.64 and 79,778.92 is: 110,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,442.48 : 197,957.64 = 79,778.92 : x
  2. Step 2: Convert to fraction form
    143,442.48/197,957.64 = 79,778.92/x
  3. Step 3: Cross multiply
    143,442.48x = 197,957.64 × 79,778.92
  4. Step 4: Simplify right side
    143,442.48x = 15,792,846,724.95
  5. Step 5: Solve for x
    x = 15,792,846,724.95/143,442.48
  6. Step 6: Final answer
    x = 110,098.81

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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.