Finding the Fourth Proportional to 134,647.36, 185,804.91 and 74,214.68
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Solution
The fourth proportional to 134,647.36, 185,804.91 and 74,214.68 is: 102,411.60
Step by Step Solution
- Step 1: Write the proportion equation
134,647.36 : 185,804.91 = 74,214.68 : x - Step 2: Convert to fraction form
134,647.36/185,804.91 = 74,214.68/x - Step 3: Cross multiply
134,647.36x = 185,804.91 × 74,214.68 - Step 4: Simplify right side
134,647.36x = 13,789,452,262.94 - Step 5: Solve for x
x = 13,789,452,262.94/134,647.36 - Step 6: Final answer
x = 102,411.60
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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.