Finding the Fourth Proportional to 125,330.88, 172,956.56 and 68,742.26
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Solution
The fourth proportional to 125,330.88, 172,956.56 and 68,742.26 is: 94,864.28
Step by Step Solution
- Step 1: Write the proportion equation
125,330.88 : 172,956.56 = 68,742.26 : x - Step 2: Convert to fraction form
125,330.88/172,956.56 = 68,742.26/x - Step 3: Cross multiply
125,330.88x = 172,956.56 × 68,742.26 - Step 4: Simplify right side
125,330.88x = 11,889,423,607.73 - Step 5: Solve for x
x = 11,889,423,607.73/125,330.88 - Step 6: Final answer
x = 94,864.28
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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.