Home / 190,828.40-285,997.80-106,588.40

Finding the Fourth Proportional to 190,828.40, 285,997.80 and 106,588.40

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Solution

The fourth proportional to 190,828.40, 285,997.80 and 106,588.40 is: 159,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,828.40 : 285,997.80 = 106,588.40 : x
  2. Step 2: Convert to fraction form
    190,828.40/285,997.80 = 106,588.40/x
  3. Step 3: Cross multiply
    190,828.40x = 285,997.80 × 106,588.40
  4. Step 4: Simplify right side
    190,828.40x = 30,484,047,905.52
  5. Step 5: Solve for x
    x = 30,484,047,905.52/190,828.40
  6. Step 6: Final answer
    x = 159,745.87

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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.