Home / 194,779.18-292,131.87-68,389.72

Finding the Fourth Proportional to 194,779.18, 292,131.87 and 68,389.72

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Solution

The fourth proportional to 194,779.18, 292,131.87 and 68,389.72 is: 102,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,779.18 : 292,131.87 = 68,389.72 : x
  2. Step 2: Convert to fraction form
    194,779.18/292,131.87 = 68,389.72/x
  3. Step 3: Cross multiply
    194,779.18x = 292,131.87 × 68,389.72
  4. Step 4: Simplify right side
    194,779.18x = 19,978,815,805.59
  5. Step 5: Solve for x
    x = 19,978,815,805.59/194,779.18
  6. Step 6: Final answer
    x = 102,571.62

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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.