Home / 141,828.88-212,673.12-82,679.44

Finding the Fourth Proportional to 141,828.88, 212,673.12 and 82,679.44

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Solution

The fourth proportional to 141,828.88, 212,673.12 and 82,679.44 is: 123,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,828.88 : 212,673.12 = 82,679.44 : x
  2. Step 2: Convert to fraction form
    141,828.88/212,673.12 = 82,679.44/x
  3. Step 3: Cross multiply
    141,828.88x = 212,673.12 × 82,679.44
  4. Step 4: Simplify right side
    141,828.88x = 17,583,694,464.65
  5. Step 5: Solve for x
    x = 17,583,694,464.65/141,828.88
  6. Step 6: Final answer
    x = 123,978.24

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1.5x scale

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.