Home / 90,837.38-135,674.67-82,276.02

Finding the Fourth Proportional to 90,837.38, 135,674.67 and 82,276.02

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Solution

The fourth proportional to 90,837.38, 135,674.67 and 82,276.02 is: 122,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,837.38 : 135,674.67 = 82,276.02 : x
  2. Step 2: Convert to fraction form
    90,837.38/135,674.67 = 82,276.02/x
  3. Step 3: Cross multiply
    90,837.38x = 135,674.67 × 82,276.02
  4. Step 4: Simplify right side
    90,837.38x = 11,162,771,862.41
  5. Step 5: Solve for x
    x = 11,162,771,862.41/90,837.38
  6. Step 6: Final answer
    x = 122,887.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.