Finding the Fourth Proportional to 124,261.20, 186,207.48 and 91,267.92
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Solution
The fourth proportional to 124,261.20, 186,207.48 and 91,267.92 is: 136,766.50
Step by Step Solution
- Step 1: Write the proportion equation
124,261.20 : 186,207.48 = 91,267.92 : x - Step 2: Convert to fraction form
124,261.20/186,207.48 = 91,267.92/x - Step 3: Cross multiply
124,261.20x = 186,207.48 × 91,267.92 - Step 4: Simplify right side
124,261.20x = 16,994,769,388.04 - Step 5: Solve for x
x = 16,994,769,388.04/124,261.20 - Step 6: Final answer
x = 136,766.50
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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.