Finding the Fourth Proportional to 134,720.61, 185,910.17 and 74,293.80
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Solution
The fourth proportional to 134,720.61, 185,910.17 and 74,293.80 is: 102,523.09
Step by Step Solution
- Step 1: Write the proportion equation
134,720.61 : 185,910.17 = 74,293.80 : x - Step 2: Convert to fraction form
134,720.61/185,910.17 = 74,293.80/x - Step 3: Cross multiply
134,720.61x = 185,910.17 × 74,293.80 - Step 4: Simplify right side
134,720.61x = 13,811,972,616.48 - Step 5: Solve for x
x = 13,811,972,616.48/134,720.61 - Step 6: Final answer
x = 102,523.09
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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.