Home / 124,765.20-187,172.10-36,021.60

Finding the Fourth Proportional to 124,765.20, 187,172.10 and 36,021.60

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Solution

The fourth proportional to 124,765.20, 187,172.10 and 36,021.60 is: 54,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,765.20 : 187,172.10 = 36,021.60 : x
  2. Step 2: Convert to fraction form
    124,765.20/187,172.10 = 36,021.60/x
  3. Step 3: Cross multiply
    124,765.20x = 187,172.10 × 36,021.60
  4. Step 4: Simplify right side
    124,765.20x = 6,742,238,517.36
  5. Step 5: Solve for x
    x = 6,742,238,517.36/124,765.20
  6. Step 6: Final answer
    x = 54,039.42

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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.