Home / 121,396.36-167,513.46-73,661.32

Finding the Fourth Proportional to 121,396.36, 167,513.46 and 73,661.32

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Solution

The fourth proportional to 121,396.36, 167,513.46 and 73,661.32 is: 101,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,396.36 : 167,513.46 = 73,661.32 : x
  2. Step 2: Convert to fraction form
    121,396.36/167,513.46 = 73,661.32/x
  3. Step 3: Cross multiply
    121,396.36x = 167,513.46 × 73,661.32
  4. Step 4: Simplify right side
    121,396.36x = 12,339,262,581.37
  5. Step 5: Solve for x
    x = 12,339,262,581.37/121,396.36
  6. Step 6: Final answer
    x = 101,644.42

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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.