Home / 140,805.45-194,311.71-76,274.82

Finding the Fourth Proportional to 140,805.45, 194,311.71 and 76,274.82

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Solution

The fourth proportional to 140,805.45, 194,311.71 and 76,274.82 is: 105,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,805.45 : 194,311.71 = 76,274.82 : x
  2. Step 2: Convert to fraction form
    140,805.45/194,311.71 = 76,274.82/x
  3. Step 3: Cross multiply
    140,805.45x = 194,311.71 × 76,274.82
  4. Step 4: Simplify right side
    140,805.45x = 14,821,090,704.14
  5. Step 5: Solve for x
    x = 14,821,090,704.14/140,805.45
  6. Step 6: Final answer
    x = 105,259.35

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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.