Home / 105,830.75-158,732.46-26,940.20

Finding the Fourth Proportional to 105,830.75, 158,732.46 and 26,940.20

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Solution

The fourth proportional to 105,830.75, 158,732.46 and 26,940.20 is: 40,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,830.75 : 158,732.46 = 26,940.20 : x
  2. Step 2: Convert to fraction form
    105,830.75/158,732.46 = 26,940.20/x
  3. Step 3: Cross multiply
    105,830.75x = 158,732.46 × 26,940.20
  4. Step 4: Simplify right side
    105,830.75x = 4,276,283,425.23
  5. Step 5: Solve for x
    x = 4,276,283,425.23/105,830.75
  6. Step 6: Final answer
    x = 40,406.81

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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.