Finding the Fourth Proportional to 128,313.98, 192,473.40 and 44,073.62
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Solution
The fourth proportional to 128,313.98, 192,473.40 and 44,073.62 is: 66,111.26
Step by Step Solution
- Step 1: Write the proportion equation
128,313.98 : 192,473.40 = 44,073.62 : x - Step 2: Convert to fraction form
128,313.98/192,473.40 = 44,073.62/x - Step 3: Cross multiply
128,313.98x = 192,473.40 × 44,073.62 - Step 4: Simplify right side
128,313.98x = 8,482,999,491.71 - Step 5: Solve for x
x = 8,482,999,491.71/128,313.98 - Step 6: Final answer
x = 66,111.26
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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.