Home / 239,210.20-358,863.90-81,454.60

Finding the Fourth Proportional to 239,210.20, 358,863.90 and 81,454.60

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Solution

The fourth proportional to 239,210.20, 358,863.90 and 81,454.60 is: 122,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,210.20 : 358,863.90 = 81,454.60 : x
  2. Step 2: Convert to fraction form
    239,210.20/358,863.90 = 81,454.60/x
  3. Step 3: Cross multiply
    239,210.20x = 358,863.90 × 81,454.60
  4. Step 4: Simplify right side
    239,210.20x = 29,231,115,428.94
  5. Step 5: Solve for x
    x = 29,231,115,428.94/239,210.20
  6. Step 6: Final answer
    x = 122,198.45

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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.