Finding the Fourth Proportional to 121,699.92, 167,954.97 and 70,032.84
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Solution
The fourth proportional to 121,699.92, 167,954.97 and 70,032.84 is: 96,650.54
Step by Step Solution
- Step 1: Write the proportion equation
121,699.92 : 167,954.97 = 70,032.84 : x - Step 2: Convert to fraction form
121,699.92/167,954.97 = 70,032.84/x - Step 3: Cross multiply
121,699.92x = 167,954.97 × 70,032.84 - Step 4: Simplify right side
121,699.92x = 11,762,363,541.21 - Step 5: Solve for x
x = 11,762,363,541.21/121,699.92 - Step 6: Final answer
x = 96,650.54
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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.