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Finding the Fourth Proportional to 131,879.94, 182,057.19 and 75,280.38

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Solution

The fourth proportional to 131,879.94, 182,057.19 and 75,280.38 is: 103,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,879.94 : 182,057.19 = 75,280.38 : x
  2. Step 2: Convert to fraction form
    131,879.94/182,057.19 = 75,280.38/x
  3. Step 3: Cross multiply
    131,879.94x = 182,057.19 × 75,280.38
  4. Step 4: Simplify right side
    131,879.94x = 13,705,334,444.93
  5. Step 5: Solve for x
    x = 13,705,334,444.93/131,879.94
  6. Step 6: Final answer
    x = 103,922.81

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1.5x scale

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.