Home / 112,412,940.57-155,082,355.43-75,255,190.92

Finding the Fourth Proportional to 112,412,940.57, 155,082,355.43 and 75,255,190.92

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Solution

The fourth proportional to 112,412,940.57, 155,082,355.43 and 75,255,190.92 is: 103,820,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,412,940.57 : 155,082,355.43 = 75,255,190.92 : x
  2. Step 2: Convert to fraction form
    112,412,940.57/155,082,355.43 = 75,255,190.92/x
  3. Step 3: Cross multiply
    112,412,940.57x = 155,082,355.43 × 75,255,190.92
  4. Step 4: Simplify right side
    112,412,940.57x = 11,670,752,265,831,674
  5. Step 5: Solve for x
    x = 11,670,752,265,831,674/112,412,940.57
  6. Step 6: Final answer
    x = 103,820,362.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.