Home / 112,021.70-167,645.90-69,309.59

Finding the Fourth Proportional to 112,021.70, 167,645.90 and 69,309.59

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Solution

The fourth proportional to 112,021.70, 167,645.90 and 69,309.59 is: 103,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.70 : 167,645.90 = 69,309.59 : x
  2. Step 2: Convert to fraction form
    112,021.70/167,645.90 = 69,309.59/x
  3. Step 3: Cross multiply
    112,021.70x = 167,645.90 × 69,309.59
  4. Step 4: Simplify right side
    112,021.70x = 11,619,467,929.23
  5. Step 5: Solve for x
    x = 11,619,467,929.23/112,021.70
  6. Step 6: Final answer
    x = 103,725.16

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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.