Finding the Fourth Proportional to 150,838.06, 208,109.70 and 87,152.62
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Solution
The fourth proportional to 150,838.06, 208,109.70 and 87,152.62 is: 120,243.56
Step by Step Solution
- Step 1: Write the proportion equation
150,838.06 : 208,109.70 = 87,152.62 : x - Step 2: Convert to fraction form
150,838.06/208,109.70 = 87,152.62/x - Step 3: Cross multiply
150,838.06x = 208,109.70 × 87,152.62 - Step 4: Simplify right side
150,838.06x = 18,137,305,602.41 - Step 5: Solve for x
x = 18,137,305,602.41/150,838.06 - Step 6: Final answer
x = 120,243.56
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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.