Finding the Fourth Proportional to 166,278.36, 229,539.68 and 105,931.76
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Solution
The fourth proportional to 166,278.36, 229,539.68 and 105,931.76 is: 146,233.96
Step by Step Solution
- Step 1: Write the proportion equation
166,278.36 : 229,539.68 = 105,931.76 : x - Step 2: Convert to fraction form
166,278.36/229,539.68 = 105,931.76/x - Step 3: Cross multiply
166,278.36x = 229,539.68 × 105,931.76 - Step 4: Simplify right side
166,278.36x = 24,315,542,292.24 - Step 5: Solve for x
x = 24,315,542,292.24/166,278.36 - Step 6: Final answer
x = 146,233.96
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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.