Finding the Fourth Proportional to 128,335.20, 192,502.80 and 34,840.80
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Solution
The fourth proportional to 128,335.20, 192,502.80 and 34,840.80 is: 52,261.20
Step by Step Solution
- Step 1: Write the proportion equation
128,335.20 : 192,502.80 = 34,840.80 : x - Step 2: Convert to fraction form
128,335.20/192,502.80 = 34,840.80/x - Step 3: Cross multiply
128,335.20x = 192,502.80 × 34,840.80 - Step 4: Simplify right side
128,335.20x = 6,706,951,554.24 - Step 5: Solve for x
x = 6,706,951,554.24/128,335.20 - Step 6: Final answer
x = 52,261.20
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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.