Home / 235,540.32-324,938.43-139,992.72

Finding the Fourth Proportional to 235,540.32, 324,938.43 and 139,992.72

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Solution

The fourth proportional to 235,540.32, 324,938.43 and 139,992.72 is: 193,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,540.32 : 324,938.43 = 139,992.72 : x
  2. Step 2: Convert to fraction form
    235,540.32/324,938.43 = 139,992.72/x
  3. Step 3: Cross multiply
    235,540.32x = 324,938.43 × 139,992.72
  4. Step 4: Simplify right side
    235,540.32x = 45,489,014,648.23
  5. Step 5: Solve for x
    x = 45,489,014,648.23/235,540.32
  6. Step 6: Final answer
    x = 193,126.23

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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.