Finding the Fourth Proportional to 121,317.39, 181,705.28 and 93,029.09
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Solution
The fourth proportional to 121,317.39, 181,705.28 and 93,029.09 is: 139,335.96
Step by Step Solution
- Step 1: Write the proportion equation
121,317.39 : 181,705.28 = 93,029.09 : x - Step 2: Convert to fraction form
121,317.39/181,705.28 = 93,029.09/x - Step 3: Cross multiply
121,317.39x = 181,705.28 × 93,029.09 - Step 4: Simplify right side
121,317.39x = 16,903,875,472.92 - Step 5: Solve for x
x = 16,903,875,472.92/121,317.39 - Step 6: Final answer
x = 139,335.96
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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.