Home / 105,945.14-146,218.30-68,328.74

Finding the Fourth Proportional to 105,945.14, 146,218.30 and 68,328.74

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Solution

The fourth proportional to 105,945.14, 146,218.30 and 68,328.74 is: 94,302.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,945.14 : 146,218.30 = 68,328.74 : x
  2. Step 2: Convert to fraction form
    105,945.14/146,218.30 = 68,328.74/x
  3. Step 3: Cross multiply
    105,945.14x = 146,218.30 × 68,328.74
  4. Step 4: Simplify right side
    105,945.14x = 9,990,912,203.94
  5. Step 5: Solve for x
    x = 9,990,912,203.94/105,945.14
  6. Step 6: Final answer
    x = 94,302.69

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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.