Home / 223,111.86-307,892.66-121,135.31

Finding the Fourth Proportional to 223,111.86, 307,892.66 and 121,135.31

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Solution

The fourth proportional to 223,111.86, 307,892.66 and 121,135.31 is: 167,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,111.86 : 307,892.66 = 121,135.31 : x
  2. Step 2: Convert to fraction form
    223,111.86/307,892.66 = 121,135.31/x
  3. Step 3: Cross multiply
    223,111.86x = 307,892.66 × 121,135.31
  4. Step 4: Simplify right side
    223,111.86x = 37,296,670,670.68
  5. Step 5: Solve for x
    x = 37,296,670,670.68/223,111.86
  6. Step 6: Final answer
    x = 167,165.79

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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.