Finding the Fourth Proportional to 118,175.91, 163,142.98 and 91,257.99
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Solution
The fourth proportional to 118,175.91, 163,142.98 and 91,257.99 is: 125,982.53
Step by Step Solution
- Step 1: Write the proportion equation
118,175.91 : 163,142.98 = 91,257.99 : x - Step 2: Convert to fraction form
118,175.91/163,142.98 = 91,257.99/x - Step 3: Cross multiply
118,175.91x = 163,142.98 × 91,257.99 - Step 4: Simplify right side
118,175.91x = 14,888,100,209.27 - Step 5: Solve for x
x = 14,888,100,209.27/118,175.91 - Step 6: Final answer
x = 125,982.53
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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.