Finding the Fourth Proportional to 103,927.30, 155,501.70 and 74,010.70
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Solution
The fourth proportional to 103,927.30, 155,501.70 and 74,010.70 is: 110,738.85
Step by Step Solution
- Step 1: Write the proportion equation
103,927.30 : 155,501.70 = 74,010.70 : x - Step 2: Convert to fraction form
103,927.30/155,501.70 = 74,010.70/x - Step 3: Cross multiply
103,927.30x = 155,501.70 × 74,010.70 - Step 4: Simplify right side
103,927.30x = 11,508,789,668.19 - Step 5: Solve for x
x = 11,508,789,668.19/103,927.30 - Step 6: Final answer
x = 110,738.85
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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.