Home / 131,840.36-181,939.24-71,410.86

Finding the Fourth Proportional to 131,840.36, 181,939.24 and 71,410.86

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Solution

The fourth proportional to 131,840.36, 181,939.24 and 71,410.86 is: 98,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840.36 : 181,939.24 = 71,410.86 : x
  2. Step 2: Convert to fraction form
    131,840.36/181,939.24 = 71,410.86/x
  3. Step 3: Cross multiply
    131,840.36x = 181,939.24 × 71,410.86
  4. Step 4: Simplify right side
    131,840.36x = 12,992,437,596.15
  5. Step 5: Solve for x
    x = 12,992,437,596.15/131,840.36
  6. Step 6: Final answer
    x = 98,546.74

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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.