Home / 168,121.81-232,004.64-91,640.25

Finding the Fourth Proportional to 168,121.81, 232,004.64 and 91,640.25

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Solution

The fourth proportional to 168,121.81, 232,004.64 and 91,640.25 is: 126,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,121.81 : 232,004.64 = 91,640.25 : x
  2. Step 2: Convert to fraction form
    168,121.81/232,004.64 = 91,640.25/x
  3. Step 3: Cross multiply
    168,121.81x = 232,004.64 × 91,640.25
  4. Step 4: Simplify right side
    168,121.81x = 21,260,961,951.41
  5. Step 5: Solve for x
    x = 21,260,961,951.41/168,121.81
  6. Step 6: Final answer
    x = 126,461.65

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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.