Home / 216,136.20-324,042.30-111,030.60

Finding the Fourth Proportional to 216,136.20, 324,042.30 and 111,030.60

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Solution

The fourth proportional to 216,136.20, 324,042.30 and 111,030.60 is: 166,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,136.20 : 324,042.30 = 111,030.60 : x
  2. Step 2: Convert to fraction form
    216,136.20/324,042.30 = 111,030.60/x
  3. Step 3: Cross multiply
    216,136.20x = 324,042.30 × 111,030.60
  4. Step 4: Simplify right side
    216,136.20x = 35,978,610,994.38
  5. Step 5: Solve for x
    x = 35,978,610,994.38/216,136.20
  6. Step 6: Final answer
    x = 166,462.68

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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.