Finding the Fourth Proportional to 158,723.65, 219,027.84 and 87,108.28
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Solution
The fourth proportional to 158,723.65, 219,027.84 and 87,108.28 is: 120,203.50
Step by Step Solution
- Step 1: Write the proportion equation
158,723.65 : 219,027.84 = 87,108.28 : x - Step 2: Convert to fraction form
158,723.65/219,027.84 = 87,108.28/x - Step 3: Cross multiply
158,723.65x = 219,027.84 × 87,108.28 - Step 4: Simplify right side
158,723.65x = 19,079,138,414.52 - Step 5: Solve for x
x = 19,079,138,414.52/158,723.65 - Step 6: Final answer
x = 120,203.50
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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.