Finding the Fourth Proportional to 155,508.24, 214,608.26 and 87,529.59
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Solution
The fourth proportional to 155,508.24, 214,608.26 and 87,529.59 is: 120,794.71
Step by Step Solution
- Step 1: Write the proportion equation
155,508.24 : 214,608.26 = 87,529.59 : x - Step 2: Convert to fraction form
155,508.24/214,608.26 = 87,529.59/x - Step 3: Cross multiply
155,508.24x = 214,608.26 × 87,529.59 - Step 4: Simplify right side
155,508.24x = 18,784,573,008.41 - Step 5: Solve for x
x = 18,784,573,008.41/155,508.24 - Step 6: Final answer
x = 120,794.71
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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.