Finding the Fourth Proportional to 157,390.56, 217,237.68 and 121,525.92
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Solution
The fourth proportional to 157,390.56, 217,237.68 and 121,525.92 is: 167,735.66
Step by Step Solution
- Step 1: Write the proportion equation
157,390.56 : 217,237.68 = 121,525.92 : x - Step 2: Convert to fraction form
157,390.56/217,237.68 = 121,525.92/x - Step 3: Cross multiply
157,390.56x = 217,237.68 × 121,525.92 - Step 4: Simplify right side
157,390.56x = 26,400,008,920.67 - Step 5: Solve for x
x = 26,400,008,920.67/157,390.56 - Step 6: Final answer
x = 167,735.66
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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.