Home / 103,812.84-155,719.26-28,933.20

Finding the Fourth Proportional to 103,812.84, 155,719.26 and 28,933.20

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Solution

The fourth proportional to 103,812.84, 155,719.26 and 28,933.20 is: 43,399.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,812.84 : 155,719.26 = 28,933.20 : x
  2. Step 2: Convert to fraction form
    103,812.84/155,719.26 = 28,933.20/x
  3. Step 3: Cross multiply
    103,812.84x = 155,719.26 × 28,933.20
  4. Step 4: Simplify right side
    103,812.84x = 4,505,456,493.43
  5. Step 5: Solve for x
    x = 4,505,456,493.43/103,812.84
  6. Step 6: Final answer
    x = 43,399.80

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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.