Finding the Fourth Proportional to 121,132.05, 167,162.06 and 67,415.79
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Solution
The fourth proportional to 121,132.05, 167,162.06 and 67,415.79 is: 93,033.70
Step by Step Solution
- Step 1: Write the proportion equation
121,132.05 : 167,162.06 = 67,415.79 : x - Step 2: Convert to fraction form
121,132.05/167,162.06 = 67,415.79/x - Step 3: Cross multiply
121,132.05x = 167,162.06 × 67,415.79 - Step 4: Simplify right side
121,132.05x = 11,269,362,332.93 - Step 5: Solve for x
x = 11,269,362,332.93/121,132.05 - Step 6: Final answer
x = 93,033.70
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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.