Home / 143,007.48-197,379.05-82,587.96

Finding the Fourth Proportional to 143,007.48, 197,379.05 and 82,587.96

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Solution

The fourth proportional to 143,007.48, 197,379.05 and 82,587.96 is: 113,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,007.48 : 197,379.05 = 82,587.96 : x
  2. Step 2: Convert to fraction form
    143,007.48/197,379.05 = 82,587.96/x
  3. Step 3: Cross multiply
    143,007.48x = 197,379.05 × 82,587.96
  4. Step 4: Simplify right side
    143,007.48x = 16,301,132,673.30
  5. Step 5: Solve for x
    x = 16,301,132,673.30/143,007.48
  6. Step 6: Final answer
    x = 113,987.97

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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.