Finding the Fourth Proportional to 155,712.24, 214,882.88 and 84,092.26
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Solution
The fourth proportional to 155,712.24, 214,882.88 and 84,092.26 is: 116,047.31
Step by Step Solution
- Step 1: Write the proportion equation
155,712.24 : 214,882.88 = 84,092.26 : x - Step 2: Convert to fraction form
155,712.24/214,882.88 = 84,092.26/x - Step 3: Cross multiply
155,712.24x = 214,882.88 × 84,092.26 - Step 4: Simplify right side
155,712.24x = 18,069,985,940.09 - Step 5: Solve for x
x = 18,069,985,940.09/155,712.24 - Step 6: Final answer
x = 116,047.31
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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.