Finding the Fourth Proportional to 168,135.63, 251,923.11 and 138,242.07
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Solution
The fourth proportional to 168,135.63, 251,923.11 and 138,242.07 is: 207,132.61
Step by Step Solution
- Step 1: Write the proportion equation
168,135.63 : 251,923.11 = 138,242.07 : x - Step 2: Convert to fraction form
168,135.63/251,923.11 = 138,242.07/x - Step 3: Cross multiply
168,135.63x = 251,923.11 × 138,242.07 - Step 4: Simplify right side
168,135.63x = 34,826,372,207.24 - Step 5: Solve for x
x = 34,826,372,207.24/168,135.63 - Step 6: Final answer
x = 207,132.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.