Home / 185,779.26-256,391.19-105,221.12

Finding the Fourth Proportional to 185,779.26, 256,391.19 and 105,221.12

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Solution

The fourth proportional to 185,779.26, 256,391.19 and 105,221.12 is: 145,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,779.26 : 256,391.19 = 105,221.12 : x
  2. Step 2: Convert to fraction form
    185,779.26/256,391.19 = 105,221.12/x
  3. Step 3: Cross multiply
    185,779.26x = 256,391.19 × 105,221.12
  4. Step 4: Simplify right side
    185,779.26x = 26,977,766,887.98
  5. Step 5: Solve for x
    x = 26,977,766,887.98/185,779.26
  6. Step 6: Final answer
    x = 145,214.09

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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.