Home / 223,118.96-307,902.47-121,142.49

Finding the Fourth Proportional to 223,118.96, 307,902.47 and 121,142.49

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Solution

The fourth proportional to 223,118.96, 307,902.47 and 121,142.49 is: 167,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,118.96 : 307,902.47 = 121,142.49 : x
  2. Step 2: Convert to fraction form
    223,118.96/307,902.47 = 121,142.49/x
  3. Step 3: Cross multiply
    223,118.96x = 307,902.47 × 121,142.49
  4. Step 4: Simplify right side
    223,118.96x = 37,300,070,132.60
  5. Step 5: Solve for x
    x = 37,300,070,132.60/223,118.96
  6. Step 6: Final answer
    x = 167,175.71

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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.