Home / 141,521.32-212,048.70-82,190.44

Finding the Fourth Proportional to 141,521.32, 212,048.70 and 82,190.44

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Solution

The fourth proportional to 141,521.32, 212,048.70 and 82,190.44 is: 123,150.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.32 : 212,048.70 = 82,190.44 : x
  2. Step 2: Convert to fraction form
    141,521.32/212,048.70 = 82,190.44/x
  3. Step 3: Cross multiply
    141,521.32x = 212,048.70 × 82,190.44
  4. Step 4: Simplify right side
    141,521.32x = 17,428,375,954.43
  5. Step 5: Solve for x
    x = 17,428,375,954.43/141,521.32
  6. Step 6: Final answer
    x = 123,150.18

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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.