Finding the Fourth Proportional to 128,588.07, 192,827.88 and 48,612.54
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Solution
The fourth proportional to 128,588.07, 192,827.88 and 48,612.54 is: 72,898.31
Step by Step Solution
- Step 1: Write the proportion equation
128,588.07 : 192,827.88 = 48,612.54 : x - Step 2: Convert to fraction form
128,588.07/192,827.88 = 48,612.54/x - Step 3: Cross multiply
128,588.07x = 192,827.88 × 48,612.54 - Step 4: Simplify right side
128,588.07x = 9,373,853,029.62 - Step 5: Solve for x
x = 9,373,853,029.62/128,588.07 - Step 6: Final answer
x = 72,898.31
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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.