Finding the Fourth Proportional to 122,651.03, 169,259.94 and 74,252.31
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Solution
The fourth proportional to 122,651.03, 169,259.94 and 74,252.31 is: 102,469.11
Step by Step Solution
- Step 1: Write the proportion equation
122,651.03 : 169,259.94 = 74,252.31 : x - Step 2: Convert to fraction form
122,651.03/169,259.94 = 74,252.31/x - Step 3: Cross multiply
122,651.03x = 169,259.94 × 74,252.31 - Step 4: Simplify right side
122,651.03x = 12,567,941,535.46 - Step 5: Solve for x
x = 12,567,941,535.46/122,651.03 - Step 6: Final answer
x = 102,469.11
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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.