Finding the Fourth Proportional to 101,022.06, 139,353.36 and 63,230.70
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Solution
The fourth proportional to 101,022.06, 139,353.36 and 63,230.70 is: 87,222.64
Step by Step Solution
- Step 1: Write the proportion equation
101,022.06 : 139,353.36 = 63,230.70 : x - Step 2: Convert to fraction form
101,022.06/139,353.36 = 63,230.70/x - Step 3: Cross multiply
101,022.06x = 139,353.36 × 63,230.70 - Step 4: Simplify right side
101,022.06x = 8,811,410,500.15 - Step 5: Solve for x
x = 8,811,410,500.15/101,022.06 - Step 6: Final answer
x = 87,222.64
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1.5x scale
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.