Finding the Fourth Proportional to 121,029.84, 167,018.81 and 67,313.70
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Solution
The fourth proportional to 121,029.84, 167,018.81 and 67,313.70 is: 92,891.59
Step by Step Solution
- Step 1: Write the proportion equation
121,029.84 : 167,018.81 = 67,313.70 : x - Step 2: Convert to fraction form
121,029.84/167,018.81 = 67,313.70/x - Step 3: Cross multiply
121,029.84x = 167,018.81 × 67,313.70 - Step 4: Simplify right side
121,029.84x = 11,242,653,734.13 - Step 5: Solve for x
x = 11,242,653,734.13/121,029.84 - Step 6: Final answer
x = 92,891.59
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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.