Finding the Fourth Proportional to 153,661.08, 212,092.44 and 100,093.08
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Solution
The fourth proportional to 153,661.08, 212,092.44 and 100,093.08 is: 138,154.60
Step by Step Solution
- Step 1: Write the proportion equation
153,661.08 : 212,092.44 = 100,093.08 : x - Step 2: Convert to fraction form
153,661.08/212,092.44 = 100,093.08/x - Step 3: Cross multiply
153,661.08x = 212,092.44 × 100,093.08 - Step 4: Simplify right side
153,661.08x = 21,228,985,564.32 - Step 5: Solve for x
x = 21,228,985,564.32/153,661.08 - Step 6: Final answer
x = 138,154.60
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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.