Finding the Fourth Proportional to 157,921.44, 236,722.36 and 68,022.76
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Solution
The fourth proportional to 157,921.44, 236,722.36 and 68,022.76 is: 101,965.31
Step by Step Solution
- Step 1: Write the proportion equation
157,921.44 : 236,722.36 = 68,022.76 : x - Step 2: Convert to fraction form
157,921.44/236,722.36 = 68,022.76/x - Step 3: Cross multiply
157,921.44x = 236,722.36 × 68,022.76 - Step 4: Simplify right side
157,921.44x = 16,102,508,280.91 - Step 5: Solve for x
x = 16,102,508,280.91/157,921.44 - Step 6: Final answer
x = 101,965.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.