Finding the Fourth Proportional to 101,263.64, 139,745.00 and 55,940.68
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Solution
The fourth proportional to 101,263.64, 139,745.00 and 55,940.68 is: 77,198.78
Step by Step Solution
- Step 1: Write the proportion equation
101,263.64 : 139,745.00 = 55,940.68 : x - Step 2: Convert to fraction form
101,263.64/139,745.00 = 55,940.68/x - Step 3: Cross multiply
101,263.64x = 139,745.00 × 55,940.68 - Step 4: Simplify right side
101,263.64x = 7,817,429,697.53 - Step 5: Solve for x
x = 7,817,429,697.53/101,263.64 - Step 6: Final answer
x = 77,198.78
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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.