Home / 187,800.21-281,712.20-75,465.36

Finding the Fourth Proportional to 187,800.21, 281,712.20 and 75,465.36

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Solution

The fourth proportional to 187,800.21, 281,712.20 and 75,465.36 is: 113,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,800.21 : 281,712.20 = 75,465.36 : x
  2. Step 2: Convert to fraction form
    187,800.21/281,712.20 = 75,465.36/x
  3. Step 3: Cross multiply
    187,800.21x = 281,712.20 × 75,465.36
  4. Step 4: Simplify right side
    187,800.21x = 21,259,512,212.07
  5. Step 5: Solve for x
    x = 21,259,512,212.07/187,800.21
  6. Step 6: Final answer
    x = 113,202.81

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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.