Finding the Fourth Proportional to 121,670.08, 167,903.36 and 67,951.68
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Solution
The fourth proportional to 121,670.08, 167,903.36 and 67,951.68 is: 93,772.56
Step by Step Solution
- Step 1: Write the proportion equation
121,670.08 : 167,903.36 = 67,951.68 : x - Step 2: Convert to fraction form
121,670.08/167,903.36 = 67,951.68/x - Step 3: Cross multiply
121,670.08x = 167,903.36 × 67,951.68 - Step 4: Simplify right side
121,670.08x = 11,409,315,389.64 - Step 5: Solve for x
x = 11,409,315,389.64/121,670.08 - Step 6: Final answer
x = 93,772.56
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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.