Home / 106,122.07-159,128.32-31,232.49

Finding the Fourth Proportional to 106,122.07, 159,128.32 and 31,232.49

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Solution

The fourth proportional to 106,122.07, 159,128.32 and 31,232.49 is: 46,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,122.07 : 159,128.32 = 31,232.49 : x
  2. Step 2: Convert to fraction form
    106,122.07/159,128.32 = 31,232.49/x
  3. Step 3: Cross multiply
    106,122.07x = 159,128.32 × 31,232.49
  4. Step 4: Simplify right side
    106,122.07x = 4,969,973,663.12
  5. Step 5: Solve for x
    x = 4,969,973,663.12/106,122.07
  6. Step 6: Final answer
    x = 46,832.61

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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.