Home / 141,240-194,911.38-77,579.04

Finding the Fourth Proportional to 141,240, 194,911.38 and 77,579.04

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Solution

The fourth proportional to 141,240, 194,911.38 and 77,579.04 is: 107,059.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,240 : 194,911.38 = 77,579.04 : x
  2. Step 2: Convert to fraction form
    141,240/194,911.38 = 77,579.04/x
  3. Step 3: Cross multiply
    141,240x = 194,911.38 × 77,579.04
  4. Step 4: Simplify right side
    141,240x = 15,121,037,745.48
  5. Step 5: Solve for x
    x = 15,121,037,745.48/141,240
  6. Step 6: Final answer
    x = 107,059.17

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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.