Finding the Fourth Proportional to 118,728.12, 177,435.51 and 106,393.08
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Solution
The fourth proportional to 118,728.12, 177,435.51 and 106,393.08 is: 159,001.17
Step by Step Solution
- Step 1: Write the proportion equation
118,728.12 : 177,435.51 = 106,393.08 : x - Step 2: Convert to fraction form
118,728.12/177,435.51 = 106,393.08/x - Step 3: Cross multiply
118,728.12x = 177,435.51 × 106,393.08 - Step 4: Simplify right side
118,728.12x = 18,877,910,410.27 - Step 5: Solve for x
x = 18,877,910,410.27/118,728.12 - Step 6: Final answer
x = 159,001.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.