Finding the Fourth Proportional to 162,039.76, 243,144.98 and 83,153.99
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Solution
The fourth proportional to 162,039.76, 243,144.98 and 83,153.99 is: 124,774.78
Step by Step Solution
- Step 1: Write the proportion equation
162,039.76 : 243,144.98 = 83,153.99 : x - Step 2: Convert to fraction form
162,039.76/243,144.98 = 83,153.99/x - Step 3: Cross multiply
162,039.76x = 243,144.98 × 83,153.99 - Step 4: Simplify right side
162,039.76x = 20,218,475,235.47 - Step 5: Solve for x
x = 20,218,475,235.47/162,039.76 - Step 6: Final answer
x = 124,774.78
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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.