Finding the Fourth Proportional to 121,747.22, 168,008.04 and 68,032.68
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Solution
The fourth proportional to 121,747.22, 168,008.04 and 68,032.68 is: 93,883.35
Step by Step Solution
- Step 1: Write the proportion equation
121,747.22 : 168,008.04 = 68,032.68 : x - Step 2: Convert to fraction form
121,747.22/168,008.04 = 68,032.68/x - Step 3: Cross multiply
121,747.22x = 168,008.04 × 68,032.68 - Step 4: Simplify right side
121,747.22x = 11,430,037,222.75 - Step 5: Solve for x
x = 11,430,037,222.75/121,747.22 - Step 6: Final answer
x = 93,883.35
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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.