Home / 194,145.78-268,003.84-130,520.49

Finding the Fourth Proportional to 194,145.78, 268,003.84 and 130,520.49

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Solution

The fourth proportional to 194,145.78, 268,003.84 and 130,520.49 is: 180,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,145.78 : 268,003.84 = 130,520.49 : x
  2. Step 2: Convert to fraction form
    194,145.78/268,003.84 = 130,520.49/x
  3. Step 3: Cross multiply
    194,145.78x = 268,003.84 × 130,520.49
  4. Step 4: Simplify right side
    194,145.78x = 34,979,991,178.66
  5. Step 5: Solve for x
    x = 34,979,991,178.66/194,145.78
  6. Step 6: Final answer
    x = 180,173.84

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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.