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Finding the Fourth Proportional to 131,969.74, 182,120.52 and 75,381.52

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Solution

The fourth proportional to 131,969.74, 182,120.52 and 75,381.52 is: 104,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,969.74 : 182,120.52 = 75,381.52 : x
  2. Step 2: Convert to fraction form
    131,969.74/182,120.52 = 75,381.52/x
  3. Step 3: Cross multiply
    131,969.74x = 182,120.52 × 75,381.52
  4. Step 4: Simplify right side
    131,969.74x = 13,728,521,620.79
  5. Step 5: Solve for x
    x = 13,728,521,620.79/131,969.74
  6. Step 6: Final answer
    x = 104,027.80

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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.