Home / 220,660.20-330,899.58-87,522.12

Finding the Fourth Proportional to 220,660.20, 330,899.58 and 87,522.12

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Solution

The fourth proportional to 220,660.20, 330,899.58 and 87,522.12 is: 131,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,660.20 : 330,899.58 = 87,522.12 : x
  2. Step 2: Convert to fraction form
    220,660.20/330,899.58 = 87,522.12/x
  3. Step 3: Cross multiply
    220,660.20x = 330,899.58 × 87,522.12
  4. Step 4: Simplify right side
    220,660.20x = 28,961,032,748.71
  5. Step 5: Solve for x
    x = 28,961,032,748.71/220,660.20
  6. Step 6: Final answer
    x = 131,247.20

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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.