Home / 130,874.94-196,342.65-40,912.56

Finding the Fourth Proportional to 130,874.94, 196,342.65 and 40,912.56

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Solution

The fourth proportional to 130,874.94, 196,342.65 and 40,912.56 is: 61,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,874.94 : 196,342.65 = 40,912.56 : x
  2. Step 2: Convert to fraction form
    130,874.94/196,342.65 = 40,912.56/x
  3. Step 3: Cross multiply
    130,874.94x = 196,342.65 × 40,912.56
  4. Step 4: Simplify right side
    130,874.94x = 8,032,880,448.68
  5. Step 5: Solve for x
    x = 8,032,880,448.68/130,874.94
  6. Step 6: Final answer
    x = 61,378.29

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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.