Home / 197,130.90-295,720.97-77,172.36

Finding the Fourth Proportional to 197,130.90, 295,720.97 and 77,172.36

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Solution

The fourth proportional to 197,130.90, 295,720.97 and 77,172.36 is: 115,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,130.90 : 295,720.97 = 77,172.36 : x
  2. Step 2: Convert to fraction form
    197,130.90/295,720.97 = 77,172.36/x
  3. Step 3: Cross multiply
    197,130.90x = 295,720.97 × 77,172.36
  4. Step 4: Simplify right side
    197,130.90x = 22,821,484,770.53
  5. Step 5: Solve for x
    x = 22,821,484,770.53/197,130.90
  6. Step 6: Final answer
    x = 115,768.18

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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.