Home / 161,643.36-222,990.66-125,586.60

Finding the Fourth Proportional to 161,643.36, 222,990.66 and 125,586.60

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Solution

The fourth proportional to 161,643.36, 222,990.66 and 125,586.60 is: 173,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,643.36 : 222,990.66 = 125,586.60 : x
  2. Step 2: Convert to fraction form
    161,643.36/222,990.66 = 125,586.60/x
  3. Step 3: Cross multiply
    161,643.36x = 222,990.66 × 125,586.60
  4. Step 4: Simplify right side
    161,643.36x = 28,004,638,821.16
  5. Step 5: Solve for x
    x = 28,004,638,821.16/161,643.36
  6. Step 6: Final answer
    x = 173,249.55

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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.