Home / 98,018.42-135,449.30-80,106.89

Finding the Fourth Proportional to 98,018.42, 135,449.30 and 80,106.89

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Solution

The fourth proportional to 98,018.42, 135,449.30 and 80,106.89 is: 110,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,018.42 : 135,449.30 = 80,106.89 : x
  2. Step 2: Convert to fraction form
    98,018.42/135,449.30 = 80,106.89/x
  3. Step 3: Cross multiply
    98,018.42x = 135,449.30 × 80,106.89
  4. Step 4: Simplify right side
    98,018.42x = 10,850,422,175.68
  5. Step 5: Solve for x
    x = 10,850,422,175.68/98,018.42
  6. Step 6: Final answer
    x = 110,697.79

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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.