Finding the Fourth Proportional to 121,213.05, 167,490.95 and 94,424.73
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Solution
The fourth proportional to 121,213.05, 167,490.95 and 94,424.73 is: 130,475.12
Step by Step Solution
- Step 1: Write the proportion equation
121,213.05 : 167,490.95 = 94,424.73 : x - Step 2: Convert to fraction form
121,213.05/167,490.95 = 94,424.73/x - Step 3: Cross multiply
121,213.05x = 167,490.95 × 94,424.73 - Step 4: Simplify right side
121,213.05x = 15,815,287,731.19 - Step 5: Solve for x
x = 15,815,287,731.19/121,213.05 - Step 6: Final answer
x = 130,475.12
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1.5x scale
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.