Home / 223,136.31-307,922.92-121,162.03

Finding the Fourth Proportional to 223,136.31, 307,922.92 and 121,162.03

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Solution

The fourth proportional to 223,136.31, 307,922.92 and 121,162.03 is: 167,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,136.31 : 307,922.92 = 121,162.03 : x
  2. Step 2: Convert to fraction form
    223,136.31/307,922.92 = 121,162.03/x
  3. Step 3: Cross multiply
    223,136.31x = 307,922.92 × 121,162.03
  4. Step 4: Simplify right side
    223,136.31x = 37,308,566,070.73
  5. Step 5: Solve for x
    x = 37,308,566,070.73/223,136.31
  6. Step 6: Final answer
    x = 167,200.78

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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.