Finding the Fourth Proportional to 163,539.19, 225,690.47 and 91,918.99
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Solution
The fourth proportional to 163,539.19, 225,690.47 and 91,918.99 is: 126,851.80
Step by Step Solution
- Step 1: Write the proportion equation
163,539.19 : 225,690.47 = 91,918.99 : x - Step 2: Convert to fraction form
163,539.19/225,690.47 = 91,918.99/x - Step 3: Cross multiply
163,539.19x = 225,690.47 × 91,918.99 - Step 4: Simplify right side
163,539.19x = 20,745,240,055.03 - Step 5: Solve for x
x = 20,745,240,055.03/163,539.19 - Step 6: Final answer
x = 126,851.80
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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.