Home / 280,119.48-419,913.27-111,743.16

Finding the Fourth Proportional to 280,119.48, 419,913.27 and 111,743.16

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Solution

The fourth proportional to 280,119.48, 419,913.27 and 111,743.16 is: 167,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,119.48 : 419,913.27 = 111,743.16 : x
  2. Step 2: Convert to fraction form
    280,119.48/419,913.27 = 111,743.16/x
  3. Step 3: Cross multiply
    280,119.48x = 419,913.27 × 111,743.16
  4. Step 4: Simplify right side
    280,119.48x = 46,922,435,715.73
  5. Step 5: Solve for x
    x = 46,922,435,715.73/280,119.48
  6. Step 6: Final answer
    x = 167,508.65

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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.