Home / 194,072.36-291,179.74-81,780.84

Finding the Fourth Proportional to 194,072.36, 291,179.74 and 81,780.84

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Solution

The fourth proportional to 194,072.36, 291,179.74 and 81,780.84 is: 122,701.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,072.36 : 291,179.74 = 81,780.84 : x
  2. Step 2: Convert to fraction form
    194,072.36/291,179.74 = 81,780.84/x
  3. Step 3: Cross multiply
    194,072.36x = 291,179.74 × 81,780.84
  4. Step 4: Simplify right side
    194,072.36x = 23,812,923,728.18
  5. Step 5: Solve for x
    x = 23,812,923,728.18/194,072.36
  6. Step 6: Final answer
    x = 122,701.26

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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.