Finding the Fourth Proportional to 132,687.95, 183,106.62 and 72,259.65
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Solution
The fourth proportional to 132,687.95, 183,106.62 and 72,259.65 is: 99,716.82
Step by Step Solution
- Step 1: Write the proportion equation
132,687.95 : 183,106.62 = 72,259.65 : x - Step 2: Convert to fraction form
132,687.95/183,106.62 = 72,259.65/x - Step 3: Cross multiply
132,687.95x = 183,106.62 × 72,259.65 - Step 4: Simplify right side
132,687.95x = 13,231,220,273.88 - Step 5: Solve for x
x = 13,231,220,273.88/132,687.95 - Step 6: Final answer
x = 99,716.82
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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.