Home / 203,166.20-280,371.41-122,578.16

Finding the Fourth Proportional to 203,166.20, 280,371.41 and 122,578.16

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Solution

The fourth proportional to 203,166.20, 280,371.41 and 122,578.16 is: 169,159.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,166.20 : 280,371.41 = 122,578.16 : x
  2. Step 2: Convert to fraction form
    203,166.20/280,371.41 = 122,578.16/x
  3. Step 3: Cross multiply
    203,166.20x = 280,371.41 × 122,578.16
  4. Step 4: Simplify right side
    203,166.20x = 34,367,409,539.66
  5. Step 5: Solve for x
    x = 34,367,409,539.66/203,166.20
  6. Step 6: Final answer
    x = 169,159.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.