Finding the Fourth Proportional to 104,062.18, 143,606.26 and 56,315.53
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Solution
The fourth proportional to 104,062.18, 143,606.26 and 56,315.53 is: 77,715.68
Step by Step Solution
- Step 1: Write the proportion equation
104,062.18 : 143,606.26 = 56,315.53 : x - Step 2: Convert to fraction form
104,062.18/143,606.26 = 56,315.53/x - Step 3: Cross multiply
104,062.18x = 143,606.26 × 56,315.53 - Step 4: Simplify right side
104,062.18x = 8,087,262,643.22 - Step 5: Solve for x
x = 8,087,262,643.22/104,062.18 - Step 6: Final answer
x = 77,715.68
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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.