Finding the Fourth Proportional to 104,239.18, 143,920.68 and 66,032.63
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Solution
The fourth proportional to 104,239.18, 143,920.68 and 66,032.63 is: 91,169.76
Step by Step Solution
- Step 1: Write the proportion equation
104,239.18 : 143,920.68 = 66,032.63 : x - Step 2: Convert to fraction form
104,239.18/143,920.68 = 66,032.63/x - Step 3: Cross multiply
104,239.18x = 143,920.68 × 66,032.63 - Step 4: Simplify right side
104,239.18x = 9,503,460,681.63 - Step 5: Solve for x
x = 9,503,460,681.63/104,239.18 - Step 6: Final answer
x = 91,169.76
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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.