Finding the Fourth Proportional to 104,362.80, 156,415.80 and 48,124.80
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Solution
The fourth proportional to 104,362.80, 156,415.80 and 48,124.80 is: 72,127.99
Step by Step Solution
- Step 1: Write the proportion equation
104,362.80 : 156,415.80 = 48,124.80 : x - Step 2: Convert to fraction form
104,362.80/156,415.80 = 48,124.80/x - Step 3: Cross multiply
104,362.80x = 156,415.80 × 48,124.80 - Step 4: Simplify right side
104,362.80x = 7,527,479,091.84 - Step 5: Solve for x
x = 7,527,479,091.84/104,362.80 - Step 6: Final answer
x = 72,127.99
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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.