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Finding the Fourth Proportional to 134,559, 201,330.63 and 80,322.75

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Solution

The fourth proportional to 134,559, 201,330.63 and 80,322.75 is: 120,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,559 : 201,330.63 = 80,322.75 : x
  2. Step 2: Convert to fraction form
    134,559/201,330.63 = 80,322.75/x
  3. Step 3: Cross multiply
    134,559x = 201,330.63 × 80,322.75
  4. Step 4: Simplify right side
    134,559x = 16,171,429,860.83
  5. Step 5: Solve for x
    x = 16,171,429,860.83/134,559
  6. Step 6: Final answer
    x = 120,180.96

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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.