Finding the Fourth Proportional to 154,203.24, 212,800.82 and 86,222.68
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Solution
The fourth proportional to 154,203.24, 212,800.82 and 86,222.68 is: 118,987.49
Step by Step Solution
- Step 1: Write the proportion equation
154,203.24 : 212,800.82 = 86,222.68 : x - Step 2: Convert to fraction form
154,203.24/212,800.82 = 86,222.68/x - Step 3: Cross multiply
154,203.24x = 212,800.82 × 86,222.68 - Step 4: Simplify right side
154,203.24x = 18,348,257,006.60 - Step 5: Solve for x
x = 18,348,257,006.60/154,203.24 - Step 6: Final answer
x = 118,987.49
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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.