Home / 190,721.80-286,212.30-106,481.80

Finding the Fourth Proportional to 190,721.80, 286,212.30 and 106,481.80

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Solution

The fourth proportional to 190,721.80, 286,212.30 and 106,481.80 is: 159,795.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,721.80 : 286,212.30 = 106,481.80 : x
  2. Step 2: Convert to fraction form
    190,721.80/286,212.30 = 106,481.80/x
  3. Step 3: Cross multiply
    190,721.80x = 286,212.30 × 106,481.80
  4. Step 4: Simplify right side
    190,721.80x = 30,476,400,886.14
  5. Step 5: Solve for x
    x = 30,476,400,886.14/190,721.80
  6. Step 6: Final answer
    x = 159,795.06

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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.