Home / 194,849.40-292,274.10-128,364.60

Finding the Fourth Proportional to 194,849.40, 292,274.10 and 128,364.60

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Solution

The fourth proportional to 194,849.40, 292,274.10 and 128,364.60 is: 192,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,849.40 : 292,274.10 = 128,364.60 : x
  2. Step 2: Convert to fraction form
    194,849.40/292,274.10 = 128,364.60/x
  3. Step 3: Cross multiply
    194,849.40x = 292,274.10 × 128,364.60
  4. Step 4: Simplify right side
    194,849.40x = 37,517,647,936.86
  5. Step 5: Solve for x
    x = 37,517,647,936.86/194,849.40
  6. Step 6: Final answer
    x = 192,546.90

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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.