Finding the Fourth Proportional to 126,881.04, 189,201.88 and 125,742.15
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Solution
The fourth proportional to 126,881.04, 189,201.88 and 125,742.15 is: 187,503.60
Step by Step Solution
- Step 1: Write the proportion equation
126,881.04 : 189,201.88 = 125,742.15 : x - Step 2: Convert to fraction form
126,881.04/189,201.88 = 125,742.15/x - Step 3: Cross multiply
126,881.04x = 189,201.88 × 125,742.15 - Step 4: Simplify right side
126,881.04x = 23,790,651,175.24 - Step 5: Solve for x
x = 23,790,651,175.24/126,881.04 - Step 6: Final answer
x = 187,503.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.