Finding the Fourth Proportional to 122,938.63, 169,653.69 and 69,228.95
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Solution
The fourth proportional to 122,938.63, 169,653.69 and 69,228.95 is: 95,535.03
Step by Step Solution
- Step 1: Write the proportion equation
122,938.63 : 169,653.69 = 69,228.95 : x - Step 2: Convert to fraction form
122,938.63/169,653.69 = 69,228.95/x - Step 3: Cross multiply
122,938.63x = 169,653.69 × 69,228.95 - Step 4: Simplify right side
122,938.63x = 11,744,945,974.06 - Step 5: Solve for x
x = 11,744,945,974.06/122,938.63 - Step 6: Final answer
x = 95,535.03
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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.