Finding the Fourth Proportional to 166,678.13, 230,015.81 and 91,226.63
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Solution
The fourth proportional to 166,678.13, 230,015.81 and 91,226.63 is: 125,892.74
Step by Step Solution
- Step 1: Write the proportion equation
166,678.13 : 230,015.81 = 91,226.63 : x - Step 2: Convert to fraction form
166,678.13/230,015.81 = 91,226.63/x - Step 3: Cross multiply
166,678.13x = 230,015.81 × 91,226.63 - Step 4: Simplify right side
166,678.13x = 20,983,566,271.01 - Step 5: Solve for x
x = 20,983,566,271.01/166,678.13 - Step 6: Final answer
x = 125,892.74
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1.5x scale
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.