Home / 223,111.05-307,891.45-121,134.49

Finding the Fourth Proportional to 223,111.05, 307,891.45 and 121,134.49

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Solution

The fourth proportional to 223,111.05, 307,891.45 and 121,134.49 is: 167,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,111.05 : 307,891.45 = 121,134.49 : x
  2. Step 2: Convert to fraction form
    223,111.05/307,891.45 = 121,134.49/x
  3. Step 3: Cross multiply
    223,111.05x = 307,891.45 × 121,134.49
  4. Step 4: Simplify right side
    223,111.05x = 37,296,273,771.11
  5. Step 5: Solve for x
    x = 37,296,273,771.11/223,111.05
  6. Step 6: Final answer
    x = 167,164.62

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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.