Home / 143,187.92-197,587.78-82,762.48

Finding the Fourth Proportional to 143,187.92, 197,587.78 and 82,762.48

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Solution

The fourth proportional to 143,187.92, 197,587.78 and 82,762.48 is: 114,205.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.92 : 197,587.78 = 82,762.48 : x
  2. Step 2: Convert to fraction form
    143,187.92/197,587.78 = 82,762.48/x
  3. Step 3: Cross multiply
    143,187.92x = 197,587.78 × 82,762.48
  4. Step 4: Simplify right side
    143,187.92x = 16,352,854,690.49
  5. Step 5: Solve for x
    x = 16,352,854,690.49/143,187.92
  6. Step 6: Final answer
    x = 114,205.55

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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.