Home / 105,992.46-146,208.69-66,179.34

Finding the Fourth Proportional to 105,992.46, 146,208.69 and 66,179.34

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Solution

The fourth proportional to 105,992.46, 146,208.69 and 66,179.34 is: 91,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,992.46 : 146,208.69 = 66,179.34 : x
  2. Step 2: Convert to fraction form
    105,992.46/146,208.69 = 66,179.34/x
  3. Step 3: Cross multiply
    105,992.46x = 146,208.69 × 66,179.34
  4. Step 4: Simplify right side
    105,992.46x = 9,675,994,606.46
  5. Step 5: Solve for x
    x = 9,675,994,606.46/105,992.46
  6. Step 6: Final answer
    x = 91,289.46

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1.5x scale

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.