Finding the Fourth Proportional to 157,823.15, 217,739.36 and 93,278.84
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Solution
The fourth proportional to 157,823.15, 217,739.36 and 93,278.84 is: 128,691.35
Step by Step Solution
- Step 1: Write the proportion equation
157,823.15 : 217,739.36 = 93,278.84 : x - Step 2: Convert to fraction form
157,823.15/217,739.36 = 93,278.84/x - Step 3: Cross multiply
157,823.15x = 217,739.36 × 93,278.84 - Step 4: Simplify right side
157,823.15x = 20,310,474,456.75 - Step 5: Solve for x
x = 20,310,474,456.75/157,823.15 - Step 6: Final answer
x = 128,691.35
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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.