Finding the Fourth Proportional to 121,537.36, 167,668.16 and 115,909.25
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Solution
The fourth proportional to 121,537.36, 167,668.16 and 115,909.25 is: 159,903.84
Step by Step Solution
- Step 1: Write the proportion equation
121,537.36 : 167,668.16 = 115,909.25 : x - Step 2: Convert to fraction form
121,537.36/167,668.16 = 115,909.25/x - Step 3: Cross multiply
121,537.36x = 167,668.16 × 115,909.25 - Step 4: Simplify right side
121,537.36x = 19,434,290,094.93 - Step 5: Solve for x
x = 19,434,290,094.93/121,537.36 - Step 6: Final answer
x = 159,903.84
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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.