Finding the Fourth Proportional to 106,415.04, 159,651.84 and 31,538.88
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Solution
The fourth proportional to 106,415.04, 159,651.84 and 31,538.88 is: 47,317.00
Step by Step Solution
- Step 1: Write the proportion equation
106,415.04 : 159,651.84 = 31,538.88 : x - Step 2: Convert to fraction form
106,415.04/159,651.84 = 31,538.88/x - Step 3: Cross multiply
106,415.04x = 159,651.84 × 31,538.88 - Step 4: Simplify right side
106,415.04x = 5,035,240,223.54 - Step 5: Solve for x
x = 5,035,240,223.54/106,415.04 - Step 6: Final answer
x = 47,317.00
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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.