Finding the Fourth Proportional to 102,673.06, 141,685.88 and 57,349.70
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Solution
The fourth proportional to 102,673.06, 141,685.88 and 57,349.70 is: 79,140.94
Step by Step Solution
- Step 1: Write the proportion equation
102,673.06 : 141,685.88 = 57,349.70 : x - Step 2: Convert to fraction form
102,673.06/141,685.88 = 57,349.70/x - Step 3: Cross multiply
102,673.06x = 141,685.88 × 57,349.70 - Step 4: Simplify right side
102,673.06x = 8,125,642,712.24 - Step 5: Solve for x
x = 8,125,642,712.24/102,673.06 - Step 6: Final answer
x = 79,140.94
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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.