Home / 220,628.04-330,651.32-87,435.68

Finding the Fourth Proportional to 220,628.04, 330,651.32 and 87,435.68

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Solution

The fourth proportional to 220,628.04, 330,651.32 and 87,435.68 is: 131,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,628.04 : 330,651.32 = 87,435.68 : x
  2. Step 2: Convert to fraction form
    220,628.04/330,651.32 = 87,435.68/x
  3. Step 3: Cross multiply
    220,628.04x = 330,651.32 × 87,435.68
  4. Step 4: Simplify right side
    220,628.04x = 28,910,723,007.10
  5. Step 5: Solve for x
    x = 28,910,723,007.10/220,628.04
  6. Step 6: Final answer
    x = 131,038.30

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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.