Finding the Fourth Proportional to 153,768.11, 212,163.84 and 93,337.25
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Solution
The fourth proportional to 153,768.11, 212,163.84 and 93,337.25 is: 128,783.46
Step by Step Solution
- Step 1: Write the proportion equation
153,768.11 : 212,163.84 = 93,337.25 : x - Step 2: Convert to fraction form
153,768.11/212,163.84 = 93,337.25/x - Step 3: Cross multiply
153,768.11x = 212,163.84 × 93,337.25 - Step 4: Simplify right side
153,768.11x = 19,802,788,314.22 - Step 5: Solve for x
x = 19,802,788,314.22/153,768.11 - Step 6: Final answer
x = 128,783.46
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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.