Finding the Fourth Proportional to 191,863.69, 264,780.09 and 106,980.75
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Solution
The fourth proportional to 191,863.69, 264,780.09 and 106,980.75 is: 147,638.01
Step by Step Solution
- Step 1: Write the proportion equation
191,863.69 : 264,780.09 = 106,980.75 : x - Step 2: Convert to fraction form
191,863.69/264,780.09 = 106,980.75/x - Step 3: Cross multiply
191,863.69x = 264,780.09 × 106,980.75 - Step 4: Simplify right side
191,863.69x = 28,326,372,613.27 - Step 5: Solve for x
x = 28,326,372,613.27/191,863.69 - Step 6: Final answer
x = 147,638.01
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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.