Home / 190,712.72-263,186.44-105,835.28

Finding the Fourth Proportional to 190,712.72, 263,186.44 and 105,835.28

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Solution

The fourth proportional to 190,712.72, 263,186.44 and 105,835.28 is: 146,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,712.72 : 263,186.44 = 105,835.28 : x
  2. Step 2: Convert to fraction form
    190,712.72/263,186.44 = 105,835.28/x
  3. Step 3: Cross multiply
    190,712.72x = 263,186.44 × 105,835.28
  4. Step 4: Simplify right side
    190,712.72x = 27,854,410,569.60
  5. Step 5: Solve for x
    x = 27,854,410,569.60/190,712.72
  6. Step 6: Final answer
    x = 146,054.29

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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.