Home / 98,018.67-135,449.64-80,107.14

Finding the Fourth Proportional to 98,018.67, 135,449.64 and 80,107.14

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Solution

The fourth proportional to 98,018.67, 135,449.64 and 80,107.14 is: 110,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,018.67 : 135,449.64 = 80,107.14 : x
  2. Step 2: Convert to fraction form
    98,018.67/135,449.64 = 80,107.14/x
  3. Step 3: Cross multiply
    98,018.67x = 135,449.64 × 80,107.14
  4. Step 4: Simplify right side
    98,018.67x = 10,850,483,274.43
  5. Step 5: Solve for x
    x = 10,850,483,274.43/98,018.67
  6. Step 6: Final answer
    x = 110,698.13

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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.