Finding the Fourth Proportional to 161,010.97, 222,195.95 and 100,616.71
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Solution
The fourth proportional to 161,010.97, 222,195.95 and 100,616.71 is: 138,851.56
Step by Step Solution
- Step 1: Write the proportion equation
161,010.97 : 222,195.95 = 100,616.71 : x - Step 2: Convert to fraction form
161,010.97/222,195.95 = 100,616.71/x - Step 3: Cross multiply
161,010.97x = 222,195.95 × 100,616.71 - Step 4: Simplify right side
161,010.97x = 22,356,624,961.24 - Step 5: Solve for x
x = 22,356,624,961.24/161,010.97 - Step 6: Final answer
x = 138,851.56
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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.