Finding the Fourth Proportional to 112,652.10, 155,399.76 and 69,655.68
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Solution
The fourth proportional to 112,652.10, 155,399.76 and 69,655.68 is: 96,087.65
Step by Step Solution
- Step 1: Write the proportion equation
112,652.10 : 155,399.76 = 69,655.68 : x - Step 2: Convert to fraction form
112,652.10/155,399.76 = 69,655.68/x - Step 3: Cross multiply
112,652.10x = 155,399.76 × 69,655.68 - Step 4: Simplify right side
112,652.10x = 10,824,475,954.64 - Step 5: Solve for x
x = 10,824,475,954.64/112,652.10 - Step 6: Final answer
x = 96,087.65
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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.