Home / 185,198.86-277,792.03-78,514.21

Finding the Fourth Proportional to 185,198.86, 277,792.03 and 78,514.21

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Solution

The fourth proportional to 185,198.86, 277,792.03 and 78,514.21 is: 117,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,198.86 : 277,792.03 = 78,514.21 : x
  2. Step 2: Convert to fraction form
    185,198.86/277,792.03 = 78,514.21/x
  3. Step 3: Cross multiply
    185,198.86x = 277,792.03 × 78,514.21
  4. Step 4: Simplify right side
    185,198.86x = 21,810,622,225.13
  5. Step 5: Solve for x
    x = 21,810,622,225.13/185,198.86
  6. Step 6: Final answer
    x = 117,768.67

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1.5x scale

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.