Home / 129,485.20-194,255.52-73,351.84

Finding the Fourth Proportional to 129,485.20, 194,255.52 and 73,351.84

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Solution

The fourth proportional to 129,485.20, 194,255.52 and 73,351.84 is: 110,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,485.20 : 194,255.52 = 73,351.84 : x
  2. Step 2: Convert to fraction form
    129,485.20/194,255.52 = 73,351.84/x
  3. Step 3: Cross multiply
    129,485.20x = 194,255.52 × 73,351.84
  4. Step 4: Simplify right side
    129,485.20x = 14,248,999,822.16
  5. Step 5: Solve for x
    x = 14,248,999,822.16/129,485.20
  6. Step 6: Final answer
    x = 110,043.46

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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.