Home / 98,219.43-135,543.76-55,778.26

Finding the Fourth Proportional to 98,219.43, 135,543.76 and 55,778.26

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Solution

The fourth proportional to 98,219.43, 135,543.76 and 55,778.26 is: 76,974.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,219.43 : 135,543.76 = 55,778.26 : x
  2. Step 2: Convert to fraction form
    98,219.43/135,543.76 = 55,778.26/x
  3. Step 3: Cross multiply
    98,219.43x = 135,543.76 × 55,778.26
  4. Step 4: Simplify right side
    98,219.43x = 7,560,395,086.66
  5. Step 5: Solve for x
    x = 7,560,395,086.66/98,219.43
  6. Step 6: Final answer
    x = 76,974.54

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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.