Home / 122,515.19-183,779.70-43,629.43

Finding the Fourth Proportional to 122,515.19, 183,779.70 and 43,629.43

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Solution

The fourth proportional to 122,515.19, 183,779.70 and 43,629.43 is: 65,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,515.19 : 183,779.70 = 43,629.43 : x
  2. Step 2: Convert to fraction form
    122,515.19/183,779.70 = 43,629.43/x
  3. Step 3: Cross multiply
    122,515.19x = 183,779.70 × 43,629.43
  4. Step 4: Simplify right side
    122,515.19x = 8,018,203,556.57
  5. Step 5: Solve for x
    x = 8,018,203,556.57/122,515.19
  6. Step 6: Final answer
    x = 65,446.61

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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.