Finding the Fourth Proportional to 129,417.08, 194,126.82 and 40,668.62
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Solution
The fourth proportional to 129,417.08, 194,126.82 and 40,668.62 is: 61,003.31
Step by Step Solution
- Step 1: Write the proportion equation
129,417.08 : 194,126.82 = 40,668.62 : x - Step 2: Convert to fraction form
129,417.08/194,126.82 = 40,668.62/x - Step 3: Cross multiply
129,417.08x = 194,126.82 × 40,668.62 - Step 4: Simplify right side
129,417.08x = 7,894,869,874.39 - Step 5: Solve for x
x = 7,894,869,874.39/129,417.08 - Step 6: Final answer
x = 61,003.31
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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.