Finding the Fourth Proportional to 160,782.88, 221,956.56 and 107,157.28
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Solution
The fourth proportional to 160,782.88, 221,956.56 and 107,157.28 is: 147,927.82
Step by Step Solution
- Step 1: Write the proportion equation
160,782.88 : 221,956.56 = 107,157.28 : x - Step 2: Convert to fraction form
160,782.88/221,956.56 = 107,157.28/x - Step 3: Cross multiply
160,782.88x = 221,956.56 × 107,157.28 - Step 4: Simplify right side
160,782.88x = 23,784,261,247.76 - Step 5: Solve for x
x = 23,784,261,247.76/160,782.88 - Step 6: Final answer
x = 147,927.82
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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.