Finding the Fourth Proportional to 134,806.78, 186,034.74 and 74,379.52
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Solution
The fourth proportional to 134,806.78, 186,034.74 and 74,379.52 is: 102,644.50
Step by Step Solution
- Step 1: Write the proportion equation
134,806.78 : 186,034.74 = 74,379.52 : x - Step 2: Convert to fraction form
134,806.78/186,034.74 = 74,379.52/x - Step 3: Cross multiply
134,806.78x = 186,034.74 × 74,379.52 - Step 4: Simplify right side
134,806.78x = 13,837,174,664.52 - Step 5: Solve for x
x = 13,837,174,664.52/134,806.78 - Step 6: Final answer
x = 102,644.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.