Finding the Fourth Proportional to 107,023.16, 147,791.24 and 80,118.96
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Solution
The fourth proportional to 107,023.16, 147,791.24 and 80,118.96 is: 110,638.49
Step by Step Solution
- Step 1: Write the proportion equation
107,023.16 : 147,791.24 = 80,118.96 : x - Step 2: Convert to fraction form
107,023.16/147,791.24 = 80,118.96/x - Step 3: Cross multiply
107,023.16x = 147,791.24 × 80,118.96 - Step 4: Simplify right side
107,023.16x = 11,840,880,045.32 - Step 5: Solve for x
x = 11,840,880,045.32/107,023.16 - Step 6: Final answer
x = 110,638.49
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1.5x scale
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.