Finding the Fourth Proportional to 138,341.03, 207,698.12 and 88,518.38
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Solution
The fourth proportional to 138,341.03, 207,698.12 and 88,518.38 is: 132,896.95
Step by Step Solution
- Step 1: Write the proportion equation
138,341.03 : 207,698.12 = 88,518.38 : x - Step 2: Convert to fraction form
138,341.03/207,698.12 = 88,518.38/x - Step 3: Cross multiply
138,341.03x = 207,698.12 × 88,518.38 - Step 4: Simplify right side
138,341.03x = 18,385,099,630.36 - Step 5: Solve for x
x = 18,385,099,630.36/138,341.03 - Step 6: Final answer
x = 132,896.95
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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.