Finding the Fourth Proportional to 110,989.80, 166,484.70 and 48,660.30
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Solution
The fourth proportional to 110,989.80, 166,484.70 and 48,660.30 is: 72,990.45
Step by Step Solution
- Step 1: Write the proportion equation
110,989.80 : 166,484.70 = 48,660.30 : x - Step 2: Convert to fraction form
110,989.80/166,484.70 = 48,660.30/x - Step 3: Cross multiply
110,989.80x = 166,484.70 × 48,660.30 - Step 4: Simplify right side
110,989.80x = 8,101,195,447.41 - Step 5: Solve for x
x = 8,101,195,447.41/110,989.80 - Step 6: Final answer
x = 72,990.45
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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.