Finding the Fourth Proportional to 159,282.96, 219,785.28 and 91,286.84
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Solution
The fourth proportional to 159,282.96, 219,785.28 and 91,286.84 is: 125,961.39
Step by Step Solution
- Step 1: Write the proportion equation
159,282.96 : 219,785.28 = 91,286.84 : x - Step 2: Convert to fraction form
159,282.96/219,785.28 = 91,286.84/x - Step 3: Cross multiply
159,282.96x = 219,785.28 × 91,286.84 - Step 4: Simplify right side
159,282.96x = 20,063,502,590.79 - Step 5: Solve for x
x = 20,063,502,590.79/159,282.96 - Step 6: Final answer
x = 125,961.39
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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.