Finding the Fourth Proportional to 106,814.88, 147,371.24 and 71,010.96
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Solution
The fourth proportional to 106,814.88, 147,371.24 and 71,010.96 is: 97,972.99
Step by Step Solution
- Step 1: Write the proportion equation
106,814.88 : 147,371.24 = 71,010.96 : x - Step 2: Convert to fraction form
106,814.88/147,371.24 = 71,010.96/x - Step 3: Cross multiply
106,814.88x = 147,371.24 × 71,010.96 - Step 4: Simplify right side
106,814.88x = 10,464,972,873.74 - Step 5: Solve for x
x = 10,464,972,873.74/106,814.88 - Step 6: Final answer
x = 97,972.99
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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.