Home / 105,485.09-145,568.29-60,161.90

Finding the Fourth Proportional to 105,485.09, 145,568.29 and 60,161.90

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Solution

The fourth proportional to 105,485.09, 145,568.29 and 60,161.90 is: 83,022.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,485.09 : 145,568.29 = 60,161.90 : x
  2. Step 2: Convert to fraction form
    105,485.09/145,568.29 = 60,161.90/x
  3. Step 3: Cross multiply
    105,485.09x = 145,568.29 × 60,161.90
  4. Step 4: Simplify right side
    105,485.09x = 8,757,664,906.15
  5. Step 5: Solve for x
    x = 8,757,664,906.15/105,485.09
  6. Step 6: Final answer
    x = 83,022.78

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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.