Finding the Fourth Proportional to 121,334.06, 167,424.90 and 67,612.70
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Solution
The fourth proportional to 121,334.06, 167,424.90 and 67,612.70 is: 93,296.55
Step by Step Solution
- Step 1: Write the proportion equation
121,334.06 : 167,424.90 = 67,612.70 : x - Step 2: Convert to fraction form
121,334.06/167,424.90 = 67,612.70/x - Step 3: Cross multiply
121,334.06x = 167,424.90 × 67,612.70 - Step 4: Simplify right side
121,334.06x = 11,320,049,536.23 - Step 5: Solve for x
x = 11,320,049,536.23/121,334.06 - Step 6: Final answer
x = 93,296.55
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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.