Home / 219,687.60-303,166.62-122,890.20

Finding the Fourth Proportional to 219,687.60, 303,166.62 and 122,890.20

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Solution

The fourth proportional to 219,687.60, 303,166.62 and 122,890.20 is: 169,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,687.60 : 303,166.62 = 122,890.20 : x
  2. Step 2: Convert to fraction form
    219,687.60/303,166.62 = 122,890.20/x
  3. Step 3: Cross multiply
    219,687.60x = 303,166.62 × 122,890.20
  4. Step 4: Simplify right side
    219,687.60x = 37,256,206,565.12
  5. Step 5: Solve for x
    x = 37,256,206,565.12/219,687.60
  6. Step 6: Final answer
    x = 169,587.21

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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.