Home / 223,715.90-308,727.38-121,741.33

Finding the Fourth Proportional to 223,715.90, 308,727.38 and 121,741.33

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Solution

The fourth proportional to 223,715.90, 308,727.38 and 121,741.33 is: 168,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,715.90 : 308,727.38 = 121,741.33 : x
  2. Step 2: Convert to fraction form
    223,715.90/308,727.38 = 121,741.33/x
  3. Step 3: Cross multiply
    223,715.90x = 308,727.38 × 121,741.33
  4. Step 4: Simplify right side
    223,715.90x = 37,584,881,848.62
  5. Step 5: Solve for x
    x = 37,584,881,848.62/223,715.90
  6. Step 6: Final answer
    x = 168,002.73

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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.