Home / 98,019.17-135,450.33-80,107.64

Finding the Fourth Proportional to 98,019.17, 135,450.33 and 80,107.64

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Solution

The fourth proportional to 98,019.17, 135,450.33 and 80,107.64 is: 110,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,019.17 : 135,450.33 = 80,107.64 : x
  2. Step 2: Convert to fraction form
    98,019.17/135,450.33 = 80,107.64/x
  3. Step 3: Cross multiply
    98,019.17x = 135,450.33 × 80,107.64
  4. Step 4: Simplify right side
    98,019.17x = 10,850,606,273.52
  5. Step 5: Solve for x
    x = 10,850,606,273.52/98,019.17
  6. Step 6: Final answer
    x = 110,698.82

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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.