Finding the Fourth Proportional to 154,301.75, 212,959.09 and 93,860.66
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Solution
The fourth proportional to 154,301.75, 212,959.09 and 93,860.66 is: 129,541.50
Step by Step Solution
- Step 1: Write the proportion equation
154,301.75 : 212,959.09 = 93,860.66 : x - Step 2: Convert to fraction form
154,301.75/212,959.09 = 93,860.66/x - Step 3: Cross multiply
154,301.75x = 212,959.09 × 93,860.66 - Step 4: Simplify right side
154,301.75x = 19,988,480,740.40 - Step 5: Solve for x
x = 19,988,480,740.40/154,301.75 - Step 6: Final answer
x = 129,541.50
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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.