Home / 90,296.37-135,575.78-66,676.77

Finding the Fourth Proportional to 90,296.37, 135,575.78 and 66,676.77

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Solution

The fourth proportional to 90,296.37, 135,575.78 and 66,676.77 is: 100,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,296.37 : 135,575.78 = 66,676.77 : x
  2. Step 2: Convert to fraction form
    90,296.37/135,575.78 = 66,676.77/x
  3. Step 3: Cross multiply
    90,296.37x = 135,575.78 × 66,676.77
  4. Step 4: Simplify right side
    90,296.37x = 9,039,754,767.25
  5. Step 5: Solve for x
    x = 9,039,754,767.25/90,296.37
  6. Step 6: Final answer
    x = 100,112.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.