Home / 90,826.45-135,658.36-82,265.05

Finding the Fourth Proportional to 90,826.45, 135,658.36 and 82,265.05

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Solution

The fourth proportional to 90,826.45, 135,658.36 and 82,265.05 is: 122,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,826.45 : 135,658.36 = 82,265.05 : x
  2. Step 2: Convert to fraction form
    90,826.45/135,658.36 = 82,265.05/x
  3. Step 3: Cross multiply
    90,826.45x = 135,658.36 × 82,265.05
  4. Step 4: Simplify right side
    90,826.45x = 11,159,942,040.72
  5. Step 5: Solve for x
    x = 11,159,942,040.72/90,826.45
  6. Step 6: Final answer
    x = 122,871.06

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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.