Finding the Fourth Proportional to 159,548.78, 220,187.70 and 91,587.75
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Solution
The fourth proportional to 159,548.78, 220,187.70 and 91,587.75 is: 126,397.06
Step by Step Solution
- Step 1: Write the proportion equation
159,548.78 : 220,187.70 = 91,587.75 : x - Step 2: Convert to fraction form
159,548.78/220,187.70 = 91,587.75/x - Step 3: Cross multiply
159,548.78x = 220,187.70 × 91,587.75 - Step 4: Simplify right side
159,548.78x = 20,166,496,020.68 - Step 5: Solve for x
x = 20,166,496,020.68/159,548.78 - Step 6: Final answer
x = 126,397.06
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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.