Home / 104,029.72-143,707.98-82,781.80

Finding the Fourth Proportional to 104,029.72, 143,707.98 and 82,781.80

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Solution

The fourth proportional to 104,029.72, 143,707.98 and 82,781.80 is: 114,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,029.72 : 143,707.98 = 82,781.80 : x
  2. Step 2: Convert to fraction form
    104,029.72/143,707.98 = 82,781.80/x
  3. Step 3: Cross multiply
    104,029.72x = 143,707.98 × 82,781.80
  4. Step 4: Simplify right side
    104,029.72x = 11,896,405,258.76
  5. Step 5: Solve for x
    x = 11,896,405,258.76/104,029.72
  6. Step 6: Final answer
    x = 114,355.83

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1.5x scale

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.