Finding the Fourth Proportional to 146,720.06, 219,995.68 and 78,247.14
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Solution
The fourth proportional to 146,720.06, 219,995.68 and 78,247.14 is: 117,325.69
Step by Step Solution
- Step 1: Write the proportion equation
146,720.06 : 219,995.68 = 78,247.14 : x - Step 2: Convert to fraction form
146,720.06/219,995.68 = 78,247.14/x - Step 3: Cross multiply
146,720.06x = 219,995.68 × 78,247.14 - Step 4: Simplify right side
146,720.06x = 17,214,032,847.31 - Step 5: Solve for x
x = 17,214,032,847.31/146,720.06 - Step 6: Final answer
x = 117,325.69
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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.