Finding the Fourth Proportional to 123,679.12, 170,677.24 and 69,962.99
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Solution
The fourth proportional to 123,679.12, 170,677.24 and 69,962.99 is: 96,548.96
Step by Step Solution
- Step 1: Write the proportion equation
123,679.12 : 170,677.24 = 69,962.99 : x - Step 2: Convert to fraction form
123,679.12/170,677.24 = 69,962.99/x - Step 3: Cross multiply
123,679.12x = 170,677.24 × 69,962.99 - Step 4: Simplify right side
123,679.12x = 11,941,090,287.13 - Step 5: Solve for x
x = 11,941,090,287.13/123,679.12 - Step 6: Final answer
x = 96,548.96
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1.5x scale
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.