Home / 100,768.90-151,119.42-50,817.10

Finding the Fourth Proportional to 100,768.90, 151,119.42 and 50,817.10

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Solution

The fourth proportional to 100,768.90, 151,119.42 and 50,817.10 is: 76,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,768.90 : 151,119.42 = 50,817.10 : x
  2. Step 2: Convert to fraction form
    100,768.90/151,119.42 = 50,817.10/x
  3. Step 3: Cross multiply
    100,768.90x = 151,119.42 × 50,817.10
  4. Step 4: Simplify right side
    100,768.90x = 7,679,450,678.08
  5. Step 5: Solve for x
    x = 7,679,450,678.08/100,768.90
  6. Step 6: Final answer
    x = 76,208.54

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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.