Home / 121,285.64-181,840.86-51,126.60

Finding the Fourth Proportional to 121,285.64, 181,840.86 and 51,126.60

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Solution

The fourth proportional to 121,285.64, 181,840.86 and 51,126.60 is: 76,652.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,285.64 : 181,840.86 = 51,126.60 : x
  2. Step 2: Convert to fraction form
    121,285.64/181,840.86 = 51,126.60/x
  3. Step 3: Cross multiply
    121,285.64x = 181,840.86 × 51,126.60
  4. Step 4: Simplify right side
    121,285.64x = 9,296,904,912.88
  5. Step 5: Solve for x
    x = 9,296,904,912.88/121,285.64
  6. Step 6: Final answer
    x = 76,652.97

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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.