Finding the Fourth Proportional to 157,120.84, 235,718.16 and 51,939.80
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Solution
The fourth proportional to 157,120.84, 235,718.16 and 51,939.80 is: 77,921.90
Step by Step Solution
- Step 1: Write the proportion equation
157,120.84 : 235,718.16 = 51,939.80 : x - Step 2: Convert to fraction form
157,120.84/235,718.16 = 51,939.80/x - Step 3: Cross multiply
157,120.84x = 235,718.16 × 51,939.80 - Step 4: Simplify right side
157,120.84x = 12,243,154,086.77 - Step 5: Solve for x
x = 12,243,154,086.77/157,120.84 - Step 6: Final answer
x = 77,921.90
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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.