Finding the Fourth Proportional to 157,824.11, 217,795.84 and 86,204.12
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Solution
The fourth proportional to 157,824.11, 217,795.84 and 86,204.12 is: 118,960.89
Step by Step Solution
- Step 1: Write the proportion equation
157,824.11 : 217,795.84 = 86,204.12 : x - Step 2: Convert to fraction form
157,824.11/217,795.84 = 86,204.12/x - Step 3: Cross multiply
157,824.11x = 217,795.84 × 86,204.12 - Step 4: Simplify right side
157,824.11x = 18,774,897,422.37 - Step 5: Solve for x
x = 18,774,897,422.37/157,824.11 - Step 6: Final answer
x = 118,960.89
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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.