Finding the Fourth Proportional to 121,149.64, 167,182.79 and 67,433.28
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Solution
The fourth proportional to 121,149.64, 167,182.79 and 67,433.28 is: 93,055.85
Step by Step Solution
- Step 1: Write the proportion equation
121,149.64 : 167,182.79 = 67,433.28 : x - Step 2: Convert to fraction form
121,149.64/167,182.79 = 67,433.28/x - Step 3: Cross multiply
121,149.64x = 167,182.79 × 67,433.28 - Step 4: Simplify right side
121,149.64x = 11,273,683,134.13 - Step 5: Solve for x
x = 11,273,683,134.13/121,149.64 - Step 6: Final answer
x = 93,055.85
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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.