Home / 277,849.37-416,725.76-78,122.36

Finding the Fourth Proportional to 277,849.37, 416,725.76 and 78,122.36

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Solution

The fourth proportional to 277,849.37, 416,725.76 and 78,122.36 is: 117,169.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,849.37 : 416,725.76 = 78,122.36 : x
  2. Step 2: Convert to fraction form
    277,849.37/416,725.76 = 78,122.36/x
  3. Step 3: Cross multiply
    277,849.37x = 416,725.76 × 78,122.36
  4. Step 4: Simplify right side
    277,849.37x = 32,555,598,737.03
  5. Step 5: Solve for x
    x = 32,555,598,737.03/277,849.37
  6. Step 6: Final answer
    x = 117,169.96

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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.