Finding the Fourth Proportional to 102,903.80, 154,355.70 and 50,415.80
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Solution
The fourth proportional to 102,903.80, 154,355.70 and 50,415.80 is: 75,623.70
Step by Step Solution
- Step 1: Write the proportion equation
102,903.80 : 154,355.70 = 50,415.80 : x - Step 2: Convert to fraction form
102,903.80/154,355.70 = 50,415.80/x - Step 3: Cross multiply
102,903.80x = 154,355.70 × 50,415.80 - Step 4: Simplify right side
102,903.80x = 7,781,966,100.06 - Step 5: Solve for x
x = 7,781,966,100.06/102,903.80 - Step 6: Final answer
x = 75,623.70
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1.5x scale
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.