Finding the Fourth Proportional to 113,937.36, 157,246.92 and 68,638.23
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Solution
The fourth proportional to 113,937.36, 157,246.92 and 68,638.23 is: 94,728.81
Step by Step Solution
- Step 1: Write the proportion equation
113,937.36 : 157,246.92 = 68,638.23 : x - Step 2: Convert to fraction form
113,937.36/157,246.92 = 68,638.23/x - Step 3: Cross multiply
113,937.36x = 157,246.92 × 68,638.23 - Step 4: Simplify right side
113,937.36x = 10,793,150,261.75 - Step 5: Solve for x
x = 10,793,150,261.75/113,937.36 - Step 6: Final answer
x = 94,728.81
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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.