Home / 141,571.05-195,406.34-83,478.43

Finding the Fourth Proportional to 141,571.05, 195,406.34 and 83,478.43

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Solution

The fourth proportional to 141,571.05, 195,406.34 and 83,478.43 is: 115,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.05 : 195,406.34 = 83,478.43 : x
  2. Step 2: Convert to fraction form
    141,571.05/195,406.34 = 83,478.43/x
  3. Step 3: Cross multiply
    141,571.05x = 195,406.34 × 83,478.43
  4. Step 4: Simplify right side
    141,571.05x = 16,312,214,475.25
  5. Step 5: Solve for x
    x = 16,312,214,475.25/141,571.05
  6. Step 6: Final answer
    x = 115,222.81

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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.