Home / 223,143.07-307,936.31-121,167.64

Finding the Fourth Proportional to 223,143.07, 307,936.31 and 121,167.64

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Solution

The fourth proportional to 223,143.07, 307,936.31 and 121,167.64 is: 167,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,143.07 : 307,936.31 = 121,167.64 : x
  2. Step 2: Convert to fraction form
    223,143.07/307,936.31 = 121,167.64/x
  3. Step 3: Cross multiply
    223,143.07x = 307,936.31 × 121,167.64
  4. Step 4: Simplify right side
    223,143.07x = 37,311,914,933.92
  5. Step 5: Solve for x
    x = 37,311,914,933.92/223,143.07
  6. Step 6: Final answer
    x = 167,210.73

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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.