Finding the Fourth Proportional to 128,562.15, 192,725.08 and 44,302.26
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Solution
The fourth proportional to 128,562.15, 192,725.08 and 44,302.26 is: 66,412.68
Step by Step Solution
- Step 1: Write the proportion equation
128,562.15 : 192,725.08 = 44,302.26 : x - Step 2: Convert to fraction form
128,562.15/192,725.08 = 44,302.26/x - Step 3: Cross multiply
128,562.15x = 192,725.08 × 44,302.26 - Step 4: Simplify right side
128,562.15x = 8,538,156,491.93 - Step 5: Solve for x
x = 8,538,156,491.93/128,562.15 - Step 6: Final answer
x = 66,412.68
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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.