Home / 222,988.09-307,723.76-121,013.57

Finding the Fourth Proportional to 222,988.09, 307,723.76 and 121,013.57

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Solution

The fourth proportional to 222,988.09, 307,723.76 and 121,013.57 is: 166,998.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,988.09 : 307,723.76 = 121,013.57 : x
  2. Step 2: Convert to fraction form
    222,988.09/307,723.76 = 121,013.57/x
  3. Step 3: Cross multiply
    222,988.09x = 307,723.76 × 121,013.57
  4. Step 4: Simplify right side
    222,988.09x = 37,238,749,232.80
  5. Step 5: Solve for x
    x = 37,238,749,232.80/222,988.09
  6. Step 6: Final answer
    x = 166,998.83

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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.