Home / 161,515.73-222,889.47-89,895.78

Finding the Fourth Proportional to 161,515.73, 222,889.47 and 89,895.78

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Solution

The fourth proportional to 161,515.73, 222,889.47 and 89,895.78 is: 124,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,515.73 : 222,889.47 = 89,895.78 : x
  2. Step 2: Convert to fraction form
    161,515.73/222,889.47 = 89,895.78/x
  3. Step 3: Cross multiply
    161,515.73x = 222,889.47 × 89,895.78
  4. Step 4: Simplify right side
    161,515.73x = 20,036,822,759.44
  5. Step 5: Solve for x
    x = 20,036,822,759.44/161,515.73
  6. Step 6: Final answer
    x = 124,054.93

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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.