Finding the Fourth Proportional to 112,551.05, 155,317.14 and 61,562.68
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Solution
The fourth proportional to 112,551.05, 155,317.14 and 61,562.68 is: 84,954.69
Step by Step Solution
- Step 1: Write the proportion equation
112,551.05 : 155,317.14 = 61,562.68 : x - Step 2: Convert to fraction form
112,551.05/155,317.14 = 61,562.68/x - Step 3: Cross multiply
112,551.05x = 155,317.14 × 61,562.68 - Step 4: Simplify right side
112,551.05x = 9,561,738,611.75 - Step 5: Solve for x
x = 9,561,738,611.75/112,551.05 - Step 6: Final answer
x = 84,954.69
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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.