Home / 98,019.92-135,451.37-80,108.39

Finding the Fourth Proportional to 98,019.92, 135,451.37 and 80,108.39

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Solution

The fourth proportional to 98,019.92, 135,451.37 and 80,108.39 is: 110,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,019.92 : 135,451.37 = 80,108.39 : x
  2. Step 2: Convert to fraction form
    98,019.92/135,451.37 = 80,108.39/x
  3. Step 3: Cross multiply
    98,019.92x = 135,451.37 × 80,108.39
  4. Step 4: Simplify right side
    98,019.92x = 10,850,791,173.99
  5. Step 5: Solve for x
    x = 10,850,791,173.99/98,019.92
  6. Step 6: Final answer
    x = 110,699.86

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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.