Home / 141,939.18-195,867.14-81,467.28

Finding the Fourth Proportional to 141,939.18, 195,867.14 and 81,467.28

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Solution

The fourth proportional to 141,939.18, 195,867.14 and 81,467.28 is: 112,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.18 : 195,867.14 = 81,467.28 : x
  2. Step 2: Convert to fraction form
    141,939.18/195,867.14 = 81,467.28/x
  3. Step 3: Cross multiply
    141,939.18x = 195,867.14 × 81,467.28
  4. Step 4: Simplify right side
    141,939.18x = 15,956,763,137.18
  5. Step 5: Solve for x
    x = 15,956,763,137.18/141,939.18
  6. Step 6: Final answer
    x = 112,419.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.