Finding the Fourth Proportional to 121,418.84, 182,084.52 and 51,303.62
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Solution
The fourth proportional to 121,418.84, 182,084.52 and 51,303.62 is: 76,936.95
Step by Step Solution
- Step 1: Write the proportion equation
121,418.84 : 182,084.52 = 51,303.62 : x - Step 2: Convert to fraction form
121,418.84/182,084.52 = 51,303.62/x - Step 3: Cross multiply
121,418.84x = 182,084.52 × 51,303.62 - Step 4: Simplify right side
121,418.84x = 9,341,595,021.96 - Step 5: Solve for x
x = 9,341,595,021.96/121,418.84 - Step 6: Final answer
x = 76,936.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.