Finding the Fourth Proportional to 157,583.09, 217,482.77 and 87,739.49
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Solution
The fourth proportional to 157,583.09, 217,482.77 and 87,739.49 is: 121,090.58
Step by Step Solution
- Step 1: Write the proportion equation
157,583.09 : 217,482.77 = 87,739.49 : x - Step 2: Convert to fraction form
157,583.09/217,482.77 = 87,739.49/x - Step 3: Cross multiply
157,583.09x = 217,482.77 × 87,739.49 - Step 4: Simplify right side
157,583.09x = 19,081,827,323.59 - Step 5: Solve for x
x = 19,081,827,323.59/157,583.09 - Step 6: Final answer
x = 121,090.58
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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.