Finding the Fourth Proportional to 104,064.75, 143,609.09 and 56,318.09
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Solution
The fourth proportional to 104,064.75, 143,609.09 and 56,318.09 is: 77,718.81
Step by Step Solution
- Step 1: Write the proportion equation
104,064.75 : 143,609.09 = 56,318.09 : x - Step 2: Convert to fraction form
104,064.75/143,609.09 = 56,318.09/x - Step 3: Cross multiply
104,064.75x = 143,609.09 × 56,318.09 - Step 4: Simplify right side
104,064.75x = 8,087,788,655.80 - Step 5: Solve for x
x = 8,087,788,655.80/104,064.75 - Step 6: Final answer
x = 77,718.81
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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.