Home / 103,628.82-142,997.56-58,305.80

Finding the Fourth Proportional to 103,628.82, 142,997.56 and 58,305.80

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Solution

The fourth proportional to 103,628.82, 142,997.56 and 58,305.80 is: 80,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.82 : 142,997.56 = 58,305.80 : x
  2. Step 2: Convert to fraction form
    103,628.82/142,997.56 = 58,305.80/x
  3. Step 3: Cross multiply
    103,628.82x = 142,997.56 × 58,305.80
  4. Step 4: Simplify right side
    103,628.82x = 8,337,587,133.85
  5. Step 5: Solve for x
    x = 8,337,587,133.85/103,628.82
  6. Step 6: Final answer
    x = 80,456.26

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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.