Finding the Fourth Proportional to 157,652.98, 217,565.73 and 86,037.62
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Solution
The fourth proportional to 157,652.98, 217,565.73 and 86,037.62 is: 118,734.43
Step by Step Solution
- Step 1: Write the proportion equation
157,652.98 : 217,565.73 = 86,037.62 : x - Step 2: Convert to fraction form
157,652.98/217,565.73 = 86,037.62/x - Step 3: Cross multiply
157,652.98x = 217,565.73 × 86,037.62 - Step 4: Simplify right side
157,652.98x = 18,718,836,514.93 - Step 5: Solve for x
x = 18,718,836,514.93/157,652.98 - Step 6: Final answer
x = 118,734.43
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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.