Finding the Fourth Proportional to 186,637.97, 279,825.70 and 86,692.05
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Solution
The fourth proportional to 186,637.97, 279,825.70 and 86,692.05 is: 129,977.11
Step by Step Solution
- Step 1: Write the proportion equation
186,637.97 : 279,825.70 = 86,692.05 : x - Step 2: Convert to fraction form
186,637.97/279,825.70 = 86,692.05/x - Step 3: Cross multiply
186,637.97x = 279,825.70 × 86,692.05 - Step 4: Simplify right side
186,637.97x = 24,258,663,142.22 - Step 5: Solve for x
x = 24,258,663,142.22/186,637.97 - Step 6: Final answer
x = 129,977.11
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.