Finding the Fourth Proportional to 148,990.20, 205,604.90 and 110,919.99
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Solution
The fourth proportional to 148,990.20, 205,604.90 and 110,919.99 is: 153,068.42
Step by Step Solution
- Step 1: Write the proportion equation
148,990.20 : 205,604.90 = 110,919.99 : x - Step 2: Convert to fraction form
148,990.20/205,604.90 = 110,919.99/x - Step 3: Cross multiply
148,990.20x = 205,604.90 × 110,919.99 - Step 4: Simplify right side
148,990.20x = 22,805,694,084.32 - Step 5: Solve for x
x = 22,805,694,084.32/148,990.20 - Step 6: Final answer
x = 153,068.42
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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.