Home / 223,949.80-309,054.42-121,977.25

Finding the Fourth Proportional to 223,949.80, 309,054.42 and 121,977.25

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Solution

The fourth proportional to 223,949.80, 309,054.42 and 121,977.25 is: 168,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,949.80 : 309,054.42 = 121,977.25 : x
  2. Step 2: Convert to fraction form
    223,949.80/309,054.42 = 121,977.25/x
  3. Step 3: Cross multiply
    223,949.80x = 309,054.42 × 121,977.25
  4. Step 4: Simplify right side
    223,949.80x = 37,697,608,251.95
  5. Step 5: Solve for x
    x = 37,697,608,251.95/223,949.80
  6. Step 6: Final answer
    x = 168,330.62

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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.