Home / 131,247.93-181,135.75-80,294.60

Finding the Fourth Proportional to 131,247.93, 181,135.75 and 80,294.60

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Solution

The fourth proportional to 131,247.93, 181,135.75 and 80,294.60 is: 110,814.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247.93 : 181,135.75 = 80,294.60 : x
  2. Step 2: Convert to fraction form
    131,247.93/181,135.75 = 80,294.60/x
  3. Step 3: Cross multiply
    131,247.93x = 181,135.75 × 80,294.60
  4. Step 4: Simplify right side
    131,247.93x = 14,544,222,591.95
  5. Step 5: Solve for x
    x = 14,544,222,591.95/131,247.93
  6. Step 6: Final answer
    x = 110,814.87

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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.