Finding the Fourth Proportional to 112,557.97, 155,324.21 and 61,560.77
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Solution
The fourth proportional to 112,557.97, 155,324.21 and 61,560.77 is: 84,950.70
Step by Step Solution
- Step 1: Write the proportion equation
112,557.97 : 155,324.21 = 61,560.77 : x - Step 2: Convert to fraction form
112,557.97/155,324.21 = 61,560.77/x - Step 3: Cross multiply
112,557.97x = 155,324.21 × 61,560.77 - Step 4: Simplify right side
112,557.97x = 9,561,878,047.75 - Step 5: Solve for x
x = 9,561,878,047.75/112,557.97 - Step 6: Final answer
x = 84,950.70
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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.