Finding the Fourth Proportional to 122,585.10, 169,157.07 and 68,865.90
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Solution
The fourth proportional to 122,585.10, 169,157.07 and 68,865.90 is: 95,029.12
Step by Step Solution
- Step 1: Write the proportion equation
122,585.10 : 169,157.07 = 68,865.90 : x - Step 2: Convert to fraction form
122,585.10/169,157.07 = 68,865.90/x - Step 3: Cross multiply
122,585.10x = 169,157.07 × 68,865.90 - Step 4: Simplify right side
122,585.10x = 11,649,153,866.91 - Step 5: Solve for x
x = 11,649,153,866.91/122,585.10 - Step 6: Final answer
x = 95,029.12
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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.