Home / 140,735.46-194,214.87-77,072.70

Finding the Fourth Proportional to 140,735.46, 194,214.87 and 77,072.70

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Solution

The fourth proportional to 140,735.46, 194,214.87 and 77,072.70 is: 106,360.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,735.46 : 194,214.87 = 77,072.70 : x
  2. Step 2: Convert to fraction form
    140,735.46/194,214.87 = 77,072.70/x
  3. Step 3: Cross multiply
    140,735.46x = 194,214.87 × 77,072.70
  4. Step 4: Simplify right side
    140,735.46x = 14,968,664,411.05
  5. Step 5: Solve for x
    x = 14,968,664,411.05/140,735.46
  6. Step 6: Final answer
    x = 106,360.29

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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.