Finding the Fourth Proportional to 157,795.24, 217,759.16 and 86,177.36
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Solution
The fourth proportional to 157,795.24, 217,759.16 and 86,177.36 is: 118,925.70
Step by Step Solution
- Step 1: Write the proportion equation
157,795.24 : 217,759.16 = 86,177.36 : x - Step 2: Convert to fraction form
157,795.24/217,759.16 = 86,177.36/x - Step 3: Cross multiply
157,795.24x = 217,759.16 × 86,177.36 - Step 4: Simplify right side
157,795.24x = 18,765,909,524.62 - Step 5: Solve for x
x = 18,765,909,524.62/157,795.24 - Step 6: Final answer
x = 118,925.70
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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.