Finding the Fourth Proportional to 121,945.08, 168,274.62 and 68,225.88
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Solution
The fourth proportional to 121,945.08, 168,274.62 and 68,225.88 is: 94,146.35
Step by Step Solution
- Step 1: Write the proportion equation
121,945.08 : 168,274.62 = 68,225.88 : x - Step 2: Convert to fraction form
121,945.08/168,274.62 = 68,225.88/x - Step 3: Cross multiply
121,945.08x = 168,274.62 × 68,225.88 - Step 4: Simplify right side
121,945.08x = 11,480,684,031.17 - Step 5: Solve for x
x = 11,480,684,031.17/121,945.08 - Step 6: Final answer
x = 94,146.35
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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.