Finding the Fourth Proportional to 104,177.33, 143,775.36 and 75,129.70
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Solution
The fourth proportional to 104,177.33, 143,775.36 and 75,129.70 is: 103,686.66
Step by Step Solution
- Step 1: Write the proportion equation
104,177.33 : 143,775.36 = 75,129.70 : x - Step 2: Convert to fraction form
104,177.33/143,775.36 = 75,129.70/x - Step 3: Cross multiply
104,177.33x = 143,775.36 × 75,129.70 - Step 4: Simplify right side
104,177.33x = 10,801,798,945.32 - Step 5: Solve for x
x = 10,801,798,945.32/104,177.33 - Step 6: Final answer
x = 103,686.66
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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.