Home / 121,395.36-167,512.08-73,660.32

Finding the Fourth Proportional to 121,395.36, 167,512.08 and 73,660.32

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Solution

The fourth proportional to 121,395.36, 167,512.08 and 73,660.32 is: 101,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,395.36 : 167,512.08 = 73,660.32 : x
  2. Step 2: Convert to fraction form
    121,395.36/167,512.08 = 73,660.32/x
  3. Step 3: Cross multiply
    121,395.36x = 167,512.08 × 73,660.32
  4. Step 4: Simplify right side
    121,395.36x = 12,338,993,416.67
  5. Step 5: Solve for x
    x = 12,338,993,416.67/121,395.36
  6. Step 6: Final answer
    x = 101,643.04

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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.