Finding the Fourth Proportional to 121,461.76, 167,617.46 and 67,750.26
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Solution
The fourth proportional to 121,461.76, 167,617.46 and 67,750.26 is: 93,495.49
Step by Step Solution
- Step 1: Write the proportion equation
121,461.76 : 167,617.46 = 67,750.26 : x - Step 2: Convert to fraction form
121,461.76/167,617.46 = 67,750.26/x - Step 3: Cross multiply
121,461.76x = 167,617.46 × 67,750.26 - Step 4: Simplify right side
121,461.76x = 11,356,126,495.54 - Step 5: Solve for x
x = 11,356,126,495.54/121,461.76 - Step 6: Final answer
x = 93,495.49
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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.