Finding the Fourth Proportional to 121,888.08, 182,799.36 and 42,991.92
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Solution
The fourth proportional to 121,888.08, 182,799.36 and 42,991.92 is: 64,476.33
Step by Step Solution
- Step 1: Write the proportion equation
121,888.08 : 182,799.36 = 42,991.92 : x - Step 2: Convert to fraction form
121,888.08/182,799.36 = 42,991.92/x - Step 3: Cross multiply
121,888.08x = 182,799.36 × 42,991.92 - Step 4: Simplify right side
121,888.08x = 7,858,895,461.17 - Step 5: Solve for x
x = 7,858,895,461.17/121,888.08 - Step 6: Final answer
x = 64,476.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.