Finding the Fourth Proportional to 136,315.71, 188,146.70 and 88,486.02
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Solution
The fourth proportional to 136,315.71, 188,146.70 and 88,486.02 is: 122,130.84
Step by Step Solution
- Step 1: Write the proportion equation
136,315.71 : 188,146.70 = 88,486.02 : x - Step 2: Convert to fraction form
136,315.71/188,146.70 = 88,486.02/x - Step 3: Cross multiply
136,315.71x = 188,146.70 × 88,486.02 - Step 4: Simplify right side
136,315.71x = 16,648,352,548.53 - Step 5: Solve for x
x = 16,648,352,548.53/136,315.71 - Step 6: Final answer
x = 122,130.84
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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.