Finding the Fourth Proportional to 113,925.12, 157,192.68 and 66,153.84
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Solution
The fourth proportional to 113,925.12, 157,192.68 and 66,153.84 is: 91,278.37
Step by Step Solution
- Step 1: Write the proportion equation
113,925.12 : 157,192.68 = 66,153.84 : x - Step 2: Convert to fraction form
113,925.12/157,192.68 = 66,153.84/x - Step 3: Cross multiply
113,925.12x = 157,192.68 × 66,153.84 - Step 4: Simplify right side
113,925.12x = 10,398,899,401.89 - Step 5: Solve for x
x = 10,398,899,401.89/113,925.12 - Step 6: Final answer
x = 91,278.37
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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.