Finding the Fourth Proportional to 118,245.69, 163,182.49 and 64,534.14
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Solution
The fourth proportional to 118,245.69, 163,182.49 and 64,534.14 is: 89,058.99
Step by Step Solution
- Step 1: Write the proportion equation
118,245.69 : 163,182.49 = 64,534.14 : x - Step 2: Convert to fraction form
118,245.69/163,182.49 = 64,534.14/x - Step 3: Cross multiply
118,245.69x = 163,182.49 × 64,534.14 - Step 4: Simplify right side
118,245.69x = 10,530,841,655.21 - Step 5: Solve for x
x = 10,530,841,655.21/118,245.69 - Step 6: Final answer
x = 89,058.99
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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.