Home / 197,131.40-295,721.72-77,172.86

Finding the Fourth Proportional to 197,131.40, 295,721.72 and 77,172.86

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Solution

The fourth proportional to 197,131.40, 295,721.72 and 77,172.86 is: 115,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,131.40 : 295,721.72 = 77,172.86 : x
  2. Step 2: Convert to fraction form
    197,131.40/295,721.72 = 77,172.86/x
  3. Step 3: Cross multiply
    197,131.40x = 295,721.72 × 77,172.86
  4. Step 4: Simplify right side
    197,131.40x = 22,821,690,510.65
  5. Step 5: Solve for x
    x = 22,821,690,510.65/197,131.40
  6. Step 6: Final answer
    x = 115,768.93

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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.