Home / 223,110.05-307,890.07-121,133.49

Finding the Fourth Proportional to 223,110.05, 307,890.07 and 121,133.49

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Solution

The fourth proportional to 223,110.05, 307,890.07 and 121,133.49 is: 167,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,110.05 : 307,890.07 = 121,133.49 : x
  2. Step 2: Convert to fraction form
    223,110.05/307,890.07 = 121,133.49/x
  3. Step 3: Cross multiply
    223,110.05x = 307,890.07 × 121,133.49
  4. Step 4: Simplify right side
    223,110.05x = 37,295,798,715.44
  5. Step 5: Solve for x
    x = 37,295,798,715.44/223,110.05
  6. Step 6: Final answer
    x = 167,163.24

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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.