Finding the Fourth Proportional to 189,827.86, 261,967.95 and 104,950.42
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Solution
The fourth proportional to 189,827.86, 261,967.95 and 104,950.42 is: 144,834.62
Step by Step Solution
- Step 1: Write the proportion equation
189,827.86 : 261,967.95 = 104,950.42 : x - Step 2: Convert to fraction form
189,827.86/261,967.95 = 104,950.42/x - Step 3: Cross multiply
189,827.86x = 261,967.95 × 104,950.42 - Step 4: Simplify right side
189,827.86x = 27,493,646,379.04 - Step 5: Solve for x
x = 27,493,646,379.04/189,827.86 - Step 6: Final answer
x = 144,834.62
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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.