Finding the Fourth Proportional to 133,976.32, 184,891.20 and 76,625.20
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Solution
The fourth proportional to 133,976.32, 184,891.20 and 76,625.20 is: 105,744.99
Step by Step Solution
- Step 1: Write the proportion equation
133,976.32 : 184,891.20 = 76,625.20 : x - Step 2: Convert to fraction form
133,976.32/184,891.20 = 76,625.20/x - Step 3: Cross multiply
133,976.32x = 184,891.20 × 76,625.20 - Step 4: Simplify right side
133,976.32x = 14,167,325,178.24 - Step 5: Solve for x
x = 14,167,325,178.24/133,976.32 - Step 6: Final answer
x = 105,744.99
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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.