Home / 190,263.38-285,174.03-71,859.38

Finding the Fourth Proportional to 190,263.38, 285,174.03 and 71,859.38

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Solution

The fourth proportional to 190,263.38, 285,174.03 and 71,859.38 is: 107,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,263.38 : 285,174.03 = 71,859.38 : x
  2. Step 2: Convert to fraction form
    190,263.38/285,174.03 = 71,859.38/x
  3. Step 3: Cross multiply
    190,263.38x = 285,174.03 × 71,859.38
  4. Step 4: Simplify right side
    190,263.38x = 20,492,428,987.90
  5. Step 5: Solve for x
    x = 20,492,428,987.90/190,263.38
  6. Step 6: Final answer
    x = 107,705.59

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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.