Finding the Fourth Proportional to 121,458.26, 167,612.63 and 67,746.76
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Solution
The fourth proportional to 121,458.26, 167,612.63 and 67,746.76 is: 93,490.65
Step by Step Solution
- Step 1: Write the proportion equation
121,458.26 : 167,612.63 = 67,746.76 : x - Step 2: Convert to fraction form
121,458.26/167,612.63 = 67,746.76/x - Step 3: Cross multiply
121,458.26x = 167,612.63 × 67,746.76 - Step 4: Simplify right side
121,458.26x = 11,355,212,367.91 - Step 5: Solve for x
x = 11,355,212,367.91/121,458.26 - Step 6: Final answer
x = 93,490.65
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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.