Home / 98,158.12-135,296.46-69,440.68

Finding the Fourth Proportional to 98,158.12, 135,296.46 and 69,440.68

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Solution

The fourth proportional to 98,158.12, 135,296.46 and 69,440.68 is: 95,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,158.12 : 135,296.46 = 69,440.68 : x
  2. Step 2: Convert to fraction form
    98,158.12/135,296.46 = 69,440.68/x
  3. Step 3: Cross multiply
    98,158.12x = 135,296.46 × 69,440.68
  4. Step 4: Simplify right side
    98,158.12x = 9,395,078,183.99
  5. Step 5: Solve for x
    x = 9,395,078,183.99/98,158.12
  6. Step 6: Final answer
    x = 95,713.71

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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.