Finding the Fourth Proportional to 117,386.22, 161,991.80 and 63,670.08
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Solution
The fourth proportional to 117,386.22, 161,991.80 and 63,670.08 is: 87,864.07
Step by Step Solution
- Step 1: Write the proportion equation
117,386.22 : 161,991.80 = 63,670.08 : x - Step 2: Convert to fraction form
117,386.22/161,991.80 = 63,670.08/x - Step 3: Cross multiply
117,386.22x = 161,991.80 × 63,670.08 - Step 4: Simplify right side
117,386.22x = 10,314,030,546.99 - Step 5: Solve for x
x = 10,314,030,546.99/117,386.22 - Step 6: Final answer
x = 87,864.07
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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.