Home / 92,282.20-138,423.30-90,532.60

Finding the Fourth Proportional to 92,282.20, 138,423.30 and 90,532.60

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Solution

The fourth proportional to 92,282.20, 138,423.30 and 90,532.60 is: 135,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,282.20 : 138,423.30 = 90,532.60 : x
  2. Step 2: Convert to fraction form
    92,282.20/138,423.30 = 90,532.60/x
  3. Step 3: Cross multiply
    92,282.20x = 138,423.30 × 90,532.60
  4. Step 4: Simplify right side
    92,282.20x = 12,531,821,249.58
  5. Step 5: Solve for x
    x = 12,531,821,249.58/92,282.20
  6. Step 6: Final answer
    x = 135,798.90

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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.