Finding the Fourth Proportional to 159,079.42, 219,529.74 and 87,460.66
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Solution
The fourth proportional to 159,079.42, 219,529.74 and 87,460.66 is: 120,695.79
Step by Step Solution
- Step 1: Write the proportion equation
159,079.42 : 219,529.74 = 87,460.66 : x - Step 2: Convert to fraction form
159,079.42/219,529.74 = 87,460.66/x - Step 3: Cross multiply
159,079.42x = 219,529.74 × 87,460.66 - Step 4: Simplify right side
159,079.42x = 19,200,215,950.03 - Step 5: Solve for x
x = 19,200,215,950.03/159,079.42 - Step 6: Final answer
x = 120,695.79
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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.