Home / 105,447.07-145,796.89-92,161.04

Finding the Fourth Proportional to 105,447.07, 145,796.89 and 92,161.04

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Solution

The fourth proportional to 105,447.07, 145,796.89 and 92,161.04 is: 127,426.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,447.07 : 145,796.89 = 92,161.04 : x
  2. Step 2: Convert to fraction form
    105,447.07/145,796.89 = 92,161.04/x
  3. Step 3: Cross multiply
    105,447.07x = 145,796.89 × 92,161.04
  4. Step 4: Simplify right side
    105,447.07x = 13,436,792,785.49
  5. Step 5: Solve for x
    x = 13,436,792,785.49/105,447.07
  6. Step 6: Final answer
    x = 127,426.90

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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.