Finding the Fourth Proportional to 121,162.49, 181,780.80 and 62,039.99
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Solution
The fourth proportional to 121,162.49, 181,780.80 and 62,039.99 is: 93,078.96
Step by Step Solution
- Step 1: Write the proportion equation
121,162.49 : 181,780.80 = 62,039.99 : x - Step 2: Convert to fraction form
121,162.49/181,780.80 = 62,039.99/x - Step 3: Cross multiply
121,162.49x = 181,780.80 × 62,039.99 - Step 4: Simplify right side
121,162.49x = 11,277,679,014.19 - Step 5: Solve for x
x = 11,277,679,014.19/121,162.49 - Step 6: Final answer
x = 93,078.96
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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.