Finding the Fourth Proportional to 157,362.93, 217,154.74 and 85,743.49
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Solution
The fourth proportional to 157,362.93, 217,154.74 and 85,743.49 is: 118,322.69
Step by Step Solution
- Step 1: Write the proportion equation
157,362.93 : 217,154.74 = 85,743.49 : x - Step 2: Convert to fraction form
157,362.93/217,154.74 = 85,743.49/x - Step 3: Cross multiply
157,362.93x = 217,154.74 × 85,743.49 - Step 4: Simplify right side
157,362.93x = 18,619,605,277.64 - Step 5: Solve for x
x = 18,619,605,277.64/157,362.93 - Step 6: Final answer
x = 118,322.69
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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.