Finding the Fourth Proportional to 117,753.09, 162,387.63 and 90,852.99
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Solution
The fourth proportional to 117,753.09, 162,387.63 and 90,852.99 is: 125,290.99
Step by Step Solution
- Step 1: Write the proportion equation
117,753.09 : 162,387.63 = 90,852.99 : x - Step 2: Convert to fraction form
117,753.09/162,387.63 = 90,852.99/x - Step 3: Cross multiply
117,753.09x = 162,387.63 × 90,852.99 - Step 4: Simplify right side
117,753.09x = 14,753,401,724.51 - Step 5: Solve for x
x = 14,753,401,724.51/117,753.09 - Step 6: Final answer
x = 125,290.99
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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.