Finding the Fourth Proportional to 136,013.14, 187,686.18 and 75,579.95
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Solution
The fourth proportional to 136,013.14, 187,686.18 and 75,579.95 is: 104,293.69
Step by Step Solution
- Step 1: Write the proportion equation
136,013.14 : 187,686.18 = 75,579.95 : x - Step 2: Convert to fraction form
136,013.14/187,686.18 = 75,579.95/x - Step 3: Cross multiply
136,013.14x = 187,686.18 × 75,579.95 - Step 4: Simplify right side
136,013.14x = 14,185,312,100.09 - Step 5: Solve for x
x = 14,185,312,100.09/136,013.14 - Step 6: Final answer
x = 104,293.69
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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.