Finding the Fourth Proportional to 189,146.08, 283,786.86 and 81,030.08
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Solution
The fourth proportional to 189,146.08, 283,786.86 and 81,030.08 is: 121,574.14
Step by Step Solution
- Step 1: Write the proportion equation
189,146.08 : 283,786.86 = 81,030.08 : x - Step 2: Convert to fraction form
189,146.08/283,786.86 = 81,030.08/x - Step 3: Cross multiply
189,146.08x = 283,786.86 × 81,030.08 - Step 4: Simplify right side
189,146.08x = 22,995,271,968.75 - Step 5: Solve for x
x = 22,995,271,968.75/189,146.08 - Step 6: Final answer
x = 121,574.14
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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.