Home / 104,029.35-143,707.47-82,781.43

Finding the Fourth Proportional to 104,029.35, 143,707.47 and 82,781.43

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Solution

The fourth proportional to 104,029.35, 143,707.47 and 82,781.43 is: 114,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,029.35 : 143,707.47 = 82,781.43 : x
  2. Step 2: Convert to fraction form
    104,029.35/143,707.47 = 82,781.43/x
  3. Step 3: Cross multiply
    104,029.35x = 143,707.47 × 82,781.43
  4. Step 4: Simplify right side
    104,029.35x = 11,896,308,735.84
  5. Step 5: Solve for x
    x = 11,896,308,735.84/104,029.35
  6. Step 6: Final answer
    x = 114,355.32

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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.