Home / 193,867.90-290,682.78-75,401.20

Finding the Fourth Proportional to 193,867.90, 290,682.78 and 75,401.20

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Solution

The fourth proportional to 193,867.90, 290,682.78 and 75,401.20 is: 113,055.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,867.90 : 290,682.78 = 75,401.20 : x
  2. Step 2: Convert to fraction form
    193,867.90/290,682.78 = 75,401.20/x
  3. Step 3: Cross multiply
    193,867.90x = 290,682.78 × 75,401.20
  4. Step 4: Simplify right side
    193,867.90x = 21,917,830,431.34
  5. Step 5: Solve for x
    x = 21,917,830,431.34/193,867.90
  6. Step 6: Final answer
    x = 113,055.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.