Finding the Fourth Proportional to 102,888.21, 154,338.25 and 39,708.66
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Solution
The fourth proportional to 102,888.21, 154,338.25 and 39,708.66 is: 59,565.28
Step by Step Solution
- Step 1: Write the proportion equation
102,888.21 : 154,338.25 = 39,708.66 : x - Step 2: Convert to fraction form
102,888.21/154,338.25 = 39,708.66/x - Step 3: Cross multiply
102,888.21x = 154,338.25 × 39,708.66 - Step 4: Simplify right side
102,888.21x = 6,128,565,094.25 - Step 5: Solve for x
x = 6,128,565,094.25/102,888.21 - Step 6: Final answer
x = 59,565.28
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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.