Home / 105,907.44-146,115.73-67,689.36

Finding the Fourth Proportional to 105,907.44, 146,115.73 and 67,689.36

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Solution

The fourth proportional to 105,907.44, 146,115.73 and 67,689.36 is: 93,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,907.44 : 146,115.73 = 67,689.36 : x
  2. Step 2: Convert to fraction form
    105,907.44/146,115.73 = 67,689.36/x
  3. Step 3: Cross multiply
    105,907.44x = 146,115.73 × 67,689.36
  4. Step 4: Simplify right side
    105,907.44x = 9,890,479,180.61
  5. Step 5: Solve for x
    x = 9,890,479,180.61/105,907.44
  6. Step 6: Final answer
    x = 93,387.95

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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.