Finding the Fourth Proportional to 103,954.99, 143,457.79 and 56,208.23
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Solution
The fourth proportional to 103,954.99, 143,457.79 and 56,208.23 is: 77,567.31
Step by Step Solution
- Step 1: Write the proportion equation
103,954.99 : 143,457.79 = 56,208.23 : x - Step 2: Convert to fraction form
103,954.99/143,457.79 = 56,208.23/x - Step 3: Cross multiply
103,954.99x = 143,457.79 × 56,208.23 - Step 4: Simplify right side
103,954.99x = 8,063,508,174.57 - Step 5: Solve for x
x = 8,063,508,174.57/103,954.99 - Step 6: Final answer
x = 77,567.31
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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.