Finding the Fourth Proportional to 128,853.46, 193,233.87 and 44,590.74
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Solution
The fourth proportional to 128,853.46, 193,233.87 and 44,590.74 is: 66,870.09
Step by Step Solution
- Step 1: Write the proportion equation
128,853.46 : 193,233.87 = 44,590.74 : x - Step 2: Convert to fraction form
128,853.46/193,233.87 = 44,590.74/x - Step 3: Cross multiply
128,853.46x = 193,233.87 × 44,590.74 - Step 4: Simplify right side
128,853.46x = 8,616,441,850.93 - Step 5: Solve for x
x = 8,616,441,850.93/128,853.46 - Step 6: Final answer
x = 66,870.09
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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.