Finding the Fourth Proportional to 149,790.16, 206,615.50 and 113,901.49
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Solution
The fourth proportional to 149,790.16, 206,615.50 and 113,901.49 is: 157,111.88
Step by Step Solution
- Step 1: Write the proportion equation
149,790.16 : 206,615.50 = 113,901.49 : x - Step 2: Convert to fraction form
149,790.16/206,615.50 = 113,901.49/x - Step 3: Cross multiply
149,790.16x = 206,615.50 × 113,901.49 - Step 4: Simplify right side
149,790.16x = 23,533,813,307.10 - Step 5: Solve for x
x = 23,533,813,307.10/149,790.16 - Step 6: Final answer
x = 157,111.88
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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.