Finding the Fourth Proportional to 121,294.36, 181,997.99 and 46,389.81
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Solution
The fourth proportional to 121,294.36, 181,997.99 and 46,389.81 is: 69,606.31
Step by Step Solution
- Step 1: Write the proportion equation
121,294.36 : 181,997.99 = 46,389.81 : x - Step 2: Convert to fraction form
121,294.36/181,997.99 = 46,389.81/x - Step 3: Cross multiply
121,294.36x = 181,997.99 × 46,389.81 - Step 4: Simplify right side
121,294.36x = 8,442,852,800.99 - Step 5: Solve for x
x = 8,442,852,800.99/121,294.36 - Step 6: Final answer
x = 69,606.31
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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.