Finding the Fourth Proportional to 189,691.74, 261,771.99 and 104,807.58
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Solution
The fourth proportional to 189,691.74, 261,771.99 and 104,807.58 is: 144,633.02
Step by Step Solution
- Step 1: Write the proportion equation
189,691.74 : 261,771.99 = 104,807.58 : x - Step 2: Convert to fraction form
189,691.74/261,771.99 = 104,807.58/x - Step 3: Cross multiply
189,691.74x = 261,771.99 × 104,807.58 - Step 4: Simplify right side
189,691.74x = 27,435,688,783.68 - Step 5: Solve for x
x = 27,435,688,783.68/189,691.74 - Step 6: Final answer
x = 144,633.02
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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.