Home / 194,223.64-291,192.90-81,899.32

Finding the Fourth Proportional to 194,223.64, 291,192.90 and 81,899.32

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Solution

The fourth proportional to 194,223.64, 291,192.90 and 81,899.32 is: 122,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,223.64 : 291,192.90 = 81,899.32 : x
  2. Step 2: Convert to fraction form
    194,223.64/291,192.90 = 81,899.32/x
  3. Step 3: Cross multiply
    194,223.64x = 291,192.90 × 81,899.32
  4. Step 4: Simplify right side
    194,223.64x = 23,848,500,498.83
  5. Step 5: Solve for x
    x = 23,848,500,498.83/194,223.64
  6. Step 6: Final answer
    x = 122,788.87

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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.