Finding the Fourth Proportional to 157,679.66, 217,594.84 and 86,060.19
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Solution
The fourth proportional to 157,679.66, 217,594.84 and 86,060.19 is: 118,761.38
Step by Step Solution
- Step 1: Write the proportion equation
157,679.66 : 217,594.84 = 86,060.19 : x - Step 2: Convert to fraction form
157,679.66/217,594.84 = 86,060.19/x - Step 3: Cross multiply
157,679.66x = 217,594.84 × 86,060.19 - Step 4: Simplify right side
157,679.66x = 18,726,253,273.42 - Step 5: Solve for x
x = 18,726,253,273.42/157,679.66 - Step 6: Final answer
x = 118,761.38
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1.5x scale
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.