Finding the Fourth Proportional to 118,244.91, 163,238.18 and 91,326.99
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Solution
The fourth proportional to 118,244.91, 163,238.18 and 91,326.99 is: 126,077.74
Step by Step Solution
- Step 1: Write the proportion equation
118,244.91 : 163,238.18 = 91,326.99 : x - Step 2: Convert to fraction form
118,244.91/163,238.18 = 91,326.99/x - Step 3: Cross multiply
118,244.91x = 163,238.18 × 91,326.99 - Step 4: Simplify right side
118,244.91x = 14,908,051,175.84 - Step 5: Solve for x
x = 14,908,051,175.84/118,244.91 - Step 6: Final answer
x = 126,077.74
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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.