Finding the Fourth Proportional to 140,559.23, 193,973.51 and 76,898.09
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Solution
The fourth proportional to 140,559.23, 193,973.51 and 76,898.09 is: 106,120.33
Step by Step Solution
- Step 1: Write the proportion equation
140,559.23 : 193,973.51 = 76,898.09 : x - Step 2: Convert to fraction form
140,559.23/193,973.51 = 76,898.09/x - Step 3: Cross multiply
140,559.23x = 193,973.51 × 76,898.09 - Step 4: Simplify right side
140,559.23x = 14,916,191,651.97 - Step 5: Solve for x
x = 14,916,191,651.97/140,559.23 - Step 6: Final answer
x = 106,120.33
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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.