Finding the Fourth Proportional to 148,197.75, 204,512.91 and 81,129.75
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Solution
The fourth proportional to 148,197.75, 204,512.91 and 81,129.75 is: 111,959.06
Step by Step Solution
- Step 1: Write the proportion equation
148,197.75 : 204,512.91 = 81,129.75 : x - Step 2: Convert to fraction form
148,197.75/204,512.91 = 81,129.75/x - Step 3: Cross multiply
148,197.75x = 204,512.91 × 81,129.75 - Step 4: Simplify right side
148,197.75x = 16,592,080,854.42 - Step 5: Solve for x
x = 16,592,080,854.42/148,197.75 - Step 6: Final answer
x = 111,959.06
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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.