Home / 161,131.15-222,361.23-89,509.33

Finding the Fourth Proportional to 161,131.15, 222,361.23 and 89,509.33

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Solution

The fourth proportional to 161,131.15, 222,361.23 and 89,509.33 is: 123,523.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,131.15 : 222,361.23 = 89,509.33 : x
  2. Step 2: Convert to fraction form
    161,131.15/222,361.23 = 89,509.33/x
  3. Step 3: Cross multiply
    161,131.15x = 222,361.23 × 89,509.33
  4. Step 4: Simplify right side
    161,131.15x = 19,903,404,715.28
  5. Step 5: Solve for x
    x = 19,903,404,715.28/161,131.15
  6. Step 6: Final answer
    x = 123,523.01

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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.