Home / 120,986.37-181,516.47-61,863.57

Finding the Fourth Proportional to 120,986.37, 181,516.47 and 61,863.57

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Solution

The fourth proportional to 120,986.37, 181,516.47 and 61,863.57 is: 92,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,986.37 : 181,516.47 = 61,863.57 : x
  2. Step 2: Convert to fraction form
    120,986.37/181,516.47 = 61,863.57/x
  3. Step 3: Cross multiply
    120,986.37x = 181,516.47 × 61,863.57
  4. Step 4: Simplify right side
    120,986.37x = 11,229,256,848.00
  5. Step 5: Solve for x
    x = 11,229,256,848.00/120,986.37
  6. Step 6: Final answer
    x = 92,814.23

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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.