Finding the Fourth Proportional to 121,111.24, 167,135.03 and 66,669.70
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Solution
The fourth proportional to 121,111.24, 167,135.03 and 66,669.70 is: 92,005.02
Step by Step Solution
- Step 1: Write the proportion equation
121,111.24 : 167,135.03 = 66,669.70 : x - Step 2: Convert to fraction form
121,111.24/167,135.03 = 66,669.70/x - Step 3: Cross multiply
121,111.24x = 167,135.03 × 66,669.70 - Step 4: Simplify right side
121,111.24x = 11,142,842,309.59 - Step 5: Solve for x
x = 11,142,842,309.59/121,111.24 - Step 6: Final answer
x = 92,005.02
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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.