Home / 336,821.40-505,122.75-112,121.49

Finding the Fourth Proportional to 336,821.40, 505,122.75 and 112,121.49

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Solution

The fourth proportional to 336,821.40, 505,122.75 and 112,121.49 is: 168,145.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,821.40 : 505,122.75 = 112,121.49 : x
  2. Step 2: Convert to fraction form
    336,821.40/505,122.75 = 112,121.49/x
  3. Step 3: Cross multiply
    336,821.40x = 505,122.75 × 112,121.49
  4. Step 4: Simplify right side
    336,821.40x = 56,635,115,362.90
  5. Step 5: Solve for x
    x = 56,635,115,362.90/336,821.40
  6. Step 6: Final answer
    x = 168,145.83

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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.