Home / 161,571.54-222,968.25-89,949.72

Finding the Fourth Proportional to 161,571.54, 222,968.25 and 89,949.72

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Solution

The fourth proportional to 161,571.54, 222,968.25 and 89,949.72 is: 124,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,571.54 : 222,968.25 = 89,949.72 : x
  2. Step 2: Convert to fraction form
    161,571.54/222,968.25 = 89,949.72/x
  3. Step 3: Cross multiply
    161,571.54x = 222,968.25 × 89,949.72
  4. Step 4: Simplify right side
    161,571.54x = 20,055,931,656.39
  5. Step 5: Solve for x
    x = 20,055,931,656.39/161,571.54
  6. Step 6: Final answer
    x = 124,130.35

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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.