Finding the Fourth Proportional to 98,060.18, 135,161.33 and 69,342.80
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Solution
The fourth proportional to 98,060.18, 135,161.33 and 69,342.80 is: 95,578.70
Step by Step Solution
- Step 1: Write the proportion equation
98,060.18 : 135,161.33 = 69,342.80 : x - Step 2: Convert to fraction form
98,060.18/135,161.33 = 69,342.80/x - Step 3: Cross multiply
98,060.18x = 135,161.33 × 69,342.80 - Step 4: Simplify right side
98,060.18x = 9,372,464,051.40 - Step 5: Solve for x
x = 9,372,464,051.40/98,060.18 - Step 6: Final answer
x = 95,578.70
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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.