Finding the Fourth Proportional to 102,867.36, 141,958.08 and 60,427.68
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Solution
The fourth proportional to 102,867.36, 141,958.08 and 60,427.68 is: 83,390.86
Step by Step Solution
- Step 1: Write the proportion equation
102,867.36 : 141,958.08 = 60,427.68 : x - Step 2: Convert to fraction form
102,867.36/141,958.08 = 60,427.68/x - Step 3: Cross multiply
102,867.36x = 141,958.08 × 60,427.68 - Step 4: Simplify right side
102,867.36x = 8,578,197,431.65 - Step 5: Solve for x
x = 8,578,197,431.65/102,867.36 - Step 6: Final answer
x = 83,390.86
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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.