Finding the Fourth Proportional to 191,774.81, 264,649.53 and 106,890.05
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Solution
The fourth proportional to 191,774.81, 264,649.53 and 106,890.05 is: 147,508.43
Step by Step Solution
- Step 1: Write the proportion equation
191,774.81 : 264,649.53 = 106,890.05 : x - Step 2: Convert to fraction form
191,774.81/264,649.53 = 106,890.05/x - Step 3: Cross multiply
191,774.81x = 264,649.53 × 106,890.05 - Step 4: Simplify right side
191,774.81x = 28,288,400,170.93 - Step 5: Solve for x
x = 28,288,400,170.93/191,774.81 - Step 6: Final answer
x = 147,508.43
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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.