Home / 150,802.20-207,991.70-102,441.42

Finding the Fourth Proportional to 150,802.20, 207,991.70 and 102,441.42

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Solution

The fourth proportional to 150,802.20, 207,991.70 and 102,441.42 is: 141,290.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,802.20 : 207,991.70 = 102,441.42 : x
  2. Step 2: Convert to fraction form
    150,802.20/207,991.70 = 102,441.42/x
  3. Step 3: Cross multiply
    150,802.20x = 207,991.70 × 102,441.42
  4. Step 4: Simplify right side
    150,802.20x = 21,306,965,096.21
  5. Step 5: Solve for x
    x = 21,306,965,096.21/150,802.20
  6. Step 6: Final answer
    x = 141,290.81

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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.