Finding the Fourth Proportional to 121,249.02, 181,885.99 and 46,431.75
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Solution
The fourth proportional to 121,249.02, 181,885.99 and 46,431.75 is: 69,652.40
Step by Step Solution
- Step 1: Write the proportion equation
121,249.02 : 181,885.99 = 46,431.75 : x - Step 2: Convert to fraction form
121,249.02/181,885.99 = 46,431.75/x - Step 3: Cross multiply
121,249.02x = 181,885.99 × 46,431.75 - Step 4: Simplify right side
121,249.02x = 8,445,284,816.18 - Step 5: Solve for x
x = 8,445,284,816.18/121,249.02 - Step 6: Final answer
x = 69,652.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.