Home / 115,170.24-158,936.70-64,181.58

Finding the Fourth Proportional to 115,170.24, 158,936.70 and 64,181.58

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Solution

The fourth proportional to 115,170.24, 158,936.70 and 64,181.58 is: 88,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,170.24 : 158,936.70 = 64,181.58 : x
  2. Step 2: Convert to fraction form
    115,170.24/158,936.70 = 64,181.58/x
  3. Step 3: Cross multiply
    115,170.24x = 158,936.70 × 64,181.58
  4. Step 4: Simplify right side
    115,170.24x = 10,200,808,525.99
  5. Step 5: Solve for x
    x = 10,200,808,525.99/115,170.24
  6. Step 6: Final answer
    x = 88,571.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.