Finding the Fourth Proportional to 149,220.12, 205,765.92 and 115,234.08
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Solution
The fourth proportional to 149,220.12, 205,765.92 and 115,234.08 is: 158,901.14
Step by Step Solution
- Step 1: Write the proportion equation
149,220.12 : 205,765.92 = 115,234.08 : x - Step 2: Convert to fraction form
149,220.12/205,765.92 = 115,234.08/x - Step 3: Cross multiply
149,220.12x = 205,765.92 × 115,234.08 - Step 4: Simplify right side
149,220.12x = 23,711,246,486.55 - Step 5: Solve for x
x = 23,711,246,486.55/149,220.12 - Step 6: Final answer
x = 158,901.14
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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.