Finding the Fourth Proportional to 136,560.24, 188,365.14 and 90,618.87
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Solution
The fourth proportional to 136,560.24, 188,365.14 and 90,618.87 is: 124,995.65
Step by Step Solution
- Step 1: Write the proportion equation
136,560.24 : 188,365.14 = 90,618.87 : x - Step 2: Convert to fraction form
136,560.24/188,365.14 = 90,618.87/x - Step 3: Cross multiply
136,560.24x = 188,365.14 × 90,618.87 - Step 4: Simplify right side
136,560.24x = 17,069,436,134.19 - Step 5: Solve for x
x = 17,069,436,134.19/136,560.24 - Step 6: Final answer
x = 124,995.65
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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.