Finding the Fourth Proportional to 104,235.64, 143,845.31 and 56,488.99
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Solution
The fourth proportional to 104,235.64, 143,845.31 and 56,488.99 is: 77,954.87
Step by Step Solution
- Step 1: Write the proportion equation
104,235.64 : 143,845.31 = 56,488.99 : x - Step 2: Convert to fraction form
104,235.64/143,845.31 = 56,488.99/x - Step 3: Cross multiply
104,235.64x = 143,845.31 × 56,488.99 - Step 4: Simplify right side
104,235.64x = 8,125,675,742.00 - Step 5: Solve for x
x = 8,125,675,742.00/104,235.64 - Step 6: Final answer
x = 77,954.87
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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.