Home / 106,118.16-159,122.48-31,228.58

Finding the Fourth Proportional to 106,118.16, 159,122.48 and 31,228.58

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Solution

The fourth proportional to 106,118.16, 159,122.48 and 31,228.58 is: 46,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,118.16 : 159,122.48 = 31,228.58 : x
  2. Step 2: Convert to fraction form
    106,118.16/159,122.48 = 31,228.58/x
  3. Step 3: Cross multiply
    106,118.16x = 159,122.48 × 31,228.58
  4. Step 4: Simplify right side
    106,118.16x = 4,969,168,144.72
  5. Step 5: Solve for x
    x = 4,969,168,144.72/106,118.16
  6. Step 6: Final answer
    x = 46,826.75

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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.