Finding the Fourth Proportional to 157,560.16, 217,539.50 and 121,197.03
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Solution
The fourth proportional to 157,560.16, 217,539.50 and 121,197.03 is: 167,333.81
Step by Step Solution
- Step 1: Write the proportion equation
157,560.16 : 217,539.50 = 121,197.03 : x - Step 2: Convert to fraction form
157,560.16/217,539.50 = 121,197.03/x - Step 3: Cross multiply
157,560.16x = 217,539.50 × 121,197.03 - Step 4: Simplify right side
157,560.16x = 26,365,141,307.69 - Step 5: Solve for x
x = 26,365,141,307.69/157,560.16 - Step 6: Final answer
x = 167,333.81
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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.