Home / 105,904.75-146,181.36-68,179

Finding the Fourth Proportional to 105,904.75, 146,181.36 and 68,179

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Solution

The fourth proportional to 105,904.75, 146,181.36 and 68,179 is: 94,108.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,904.75 : 146,181.36 = 68,179 : x
  2. Step 2: Convert to fraction form
    105,904.75/146,181.36 = 68,179/x
  3. Step 3: Cross multiply
    105,904.75x = 146,181.36 × 68,179
  4. Step 4: Simplify right side
    105,904.75x = 9,966,498,943.44
  5. Step 5: Solve for x
    x = 9,966,498,943.44/105,904.75
  6. Step 6: Final answer
    x = 94,108.14

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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.