Finding the Fourth Proportional to 138,937.28, 207,835.04 and 110,912.08
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Solution
The fourth proportional to 138,937.28, 207,835.04 and 110,912.08 is: 165,912.38
Step by Step Solution
- Step 1: Write the proportion equation
138,937.28 : 207,835.04 = 110,912.08 : x - Step 2: Convert to fraction form
138,937.28/207,835.04 = 110,912.08/x - Step 3: Cross multiply
138,937.28x = 207,835.04 × 110,912.08 - Step 4: Simplify right side
138,937.28x = 23,051,415,327.40 - Step 5: Solve for x
x = 23,051,415,327.40/138,937.28 - Step 6: Final answer
x = 165,912.38
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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.