Finding the Fourth Proportional to 128,444.10, 192,416.88 and 94,648.80
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Solution
The fourth proportional to 128,444.10, 192,416.88 and 94,648.80 is: 141,789.52
Step by Step Solution
- Step 1: Write the proportion equation
128,444.10 : 192,416.88 = 94,648.80 : x - Step 2: Convert to fraction form
128,444.10/192,416.88 = 94,648.80/x - Step 3: Cross multiply
128,444.10x = 192,416.88 × 94,648.80 - Step 4: Simplify right side
128,444.10x = 18,212,026,791.74 - Step 5: Solve for x
x = 18,212,026,791.74/128,444.10 - Step 6: Final answer
x = 141,789.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.