Finding the Fourth Proportional to 158,768.44, 219,102.92 and 87,154.99
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Solution
The fourth proportional to 158,768.44, 219,102.92 and 87,154.99 is: 120,275.24
Step by Step Solution
- Step 1: Write the proportion equation
158,768.44 : 219,102.92 = 87,154.99 : x - Step 2: Convert to fraction form
158,768.44/219,102.92 = 87,154.99/x - Step 3: Cross multiply
158,768.44x = 219,102.92 × 87,154.99 - Step 4: Simplify right side
158,768.44x = 19,095,911,923.94 - Step 5: Solve for x
x = 19,095,911,923.94/158,768.44 - Step 6: Final answer
x = 120,275.24
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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.