Finding the Fourth Proportional to 121,031.93, 167,012.36 and 70,034.49
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Solution
The fourth proportional to 121,031.93, 167,012.36 and 70,034.49 is: 96,640.82
Step by Step Solution
- Step 1: Write the proportion equation
121,031.93 : 167,012.36 = 70,034.49 : x - Step 2: Convert to fraction form
121,031.93/167,012.36 = 70,034.49/x - Step 3: Cross multiply
121,031.93x = 167,012.36 × 70,034.49 - Step 4: Simplify right side
121,031.93x = 11,696,625,456.30 - Step 5: Solve for x
x = 11,696,625,456.30/121,031.93 - Step 6: Final answer
x = 96,640.82
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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.