Finding the Fourth Proportional to 118,695.24, 177,916.59 and 81,244.80
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Solution
The fourth proportional to 118,695.24, 177,916.59 and 81,244.80 is: 121,780.77
Step by Step Solution
- Step 1: Write the proportion equation
118,695.24 : 177,916.59 = 81,244.80 : x - Step 2: Convert to fraction form
118,695.24/177,916.59 = 81,244.80/x - Step 3: Cross multiply
118,695.24x = 177,916.59 × 81,244.80 - Step 4: Simplify right side
118,695.24x = 14,454,797,771.23 - Step 5: Solve for x
x = 14,454,797,771.23/118,695.24 - Step 6: Final answer
x = 121,780.77
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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.