Finding the Fourth Proportional to 155,842.97, 215,063.36 and 88,774.97
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Solution
The fourth proportional to 155,842.97, 215,063.36 and 88,774.97 is: 122,509.49
Step by Step Solution
- Step 1: Write the proportion equation
155,842.97 : 215,063.36 = 88,774.97 : x - Step 2: Convert to fraction form
155,842.97/215,063.36 = 88,774.97/x - Step 3: Cross multiply
155,842.97x = 215,063.36 × 88,774.97 - Step 4: Simplify right side
155,842.97x = 19,092,241,812.91 - Step 5: Solve for x
x = 19,092,241,812.91/155,842.97 - Step 6: Final answer
x = 122,509.49
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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.