Home / 128,846.06-193,287.32-40,108.53

Finding the Fourth Proportional to 128,846.06, 193,287.32 and 40,108.53

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Solution

The fourth proportional to 128,846.06, 193,287.32 and 40,108.53 is: 60,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,846.06 : 193,287.32 = 40,108.53 : x
  2. Step 2: Convert to fraction form
    128,846.06/193,287.32 = 40,108.53/x
  3. Step 3: Cross multiply
    128,846.06x = 193,287.32 × 40,108.53
  4. Step 4: Simplify right side
    128,846.06x = 7,752,470,072.30
  5. Step 5: Solve for x
    x = 7,752,470,072.30/128,846.06
  6. Step 6: Final answer
    x = 60,168.47

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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.