Home / 141,668.74-212,435.34-82,521.28

Finding the Fourth Proportional to 141,668.74, 212,435.34 and 82,521.28

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Solution

The fourth proportional to 141,668.74, 212,435.34 and 82,521.28 is: 123,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,668.74 : 212,435.34 = 82,521.28 : x
  2. Step 2: Convert to fraction form
    141,668.74/212,435.34 = 82,521.28/x
  3. Step 3: Cross multiply
    141,668.74x = 212,435.34 × 82,521.28
  4. Step 4: Simplify right side
    141,668.74x = 17,530,436,174.04
  5. Step 5: Solve for x
    x = 17,530,436,174.04/141,668.74
  6. Step 6: Final answer
    x = 123,742.44

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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.