Home / 121,936.68-168,276.24-68,220.48

Finding the Fourth Proportional to 121,936.68, 168,276.24 and 68,220.48

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Solution

The fourth proportional to 121,936.68, 168,276.24 and 68,220.48 is: 94,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,936.68 : 168,276.24 = 68,220.48 : x
  2. Step 2: Convert to fraction form
    121,936.68/168,276.24 = 68,220.48/x
  3. Step 3: Cross multiply
    121,936.68x = 168,276.24 × 68,220.48
  4. Step 4: Simplify right side
    121,936.68x = 11,479,885,865.40
  5. Step 5: Solve for x
    x = 11,479,885,865.40/121,936.68
  6. Step 6: Final answer
    x = 94,146.29

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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.