Finding the Fourth Proportional to 123,378.24, 170,252.64 and 69,655.80
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Solution
The fourth proportional to 123,378.24, 170,252.64 and 69,655.80 is: 96,119.74
Step by Step Solution
- Step 1: Write the proportion equation
123,378.24 : 170,252.64 = 69,655.80 : x - Step 2: Convert to fraction form
123,378.24/170,252.64 = 69,655.80/x - Step 3: Cross multiply
123,378.24x = 170,252.64 × 69,655.80 - Step 4: Simplify right side
123,378.24x = 11,859,083,841.31 - Step 5: Solve for x
x = 11,859,083,841.31/123,378.24 - Step 6: Final answer
x = 96,119.74
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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.