Finding the Fourth Proportional to 117,178.80, 161,707.14 and 63,463.68
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Solution
The fourth proportional to 117,178.80, 161,707.14 and 63,463.68 is: 87,580.09
Step by Step Solution
- Step 1: Write the proportion equation
117,178.80 : 161,707.14 = 63,463.68 : x - Step 2: Convert to fraction form
117,178.80/161,707.14 = 63,463.68/x - Step 3: Cross multiply
117,178.80x = 161,707.14 × 63,463.68 - Step 4: Simplify right side
117,178.80x = 10,262,530,186.68 - Step 5: Solve for x
x = 10,262,530,186.68/117,178.80 - Step 6: Final answer
x = 87,580.09
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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.