Home / 187,719.90-281,579.66-75,400.14

Finding the Fourth Proportional to 187,719.90, 281,579.66 and 75,400.14

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Solution

The fourth proportional to 187,719.90, 281,579.66 and 75,400.14 is: 113,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,719.90 : 281,579.66 = 75,400.14 : x
  2. Step 2: Convert to fraction form
    187,719.90/281,579.66 = 75,400.14/x
  3. Step 3: Cross multiply
    187,719.90x = 281,579.66 × 75,400.14
  4. Step 4: Simplify right side
    187,719.90x = 21,231,145,785.15
  5. Step 5: Solve for x
    x = 21,231,145,785.15/187,719.90
  6. Step 6: Final answer
    x = 113,100.13

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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.