Finding the Fourth Proportional to 159,873.24, 239,904.90 and 71,131.80
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Solution
The fourth proportional to 159,873.24, 239,904.90 and 71,131.80 is: 106,739.99
Step by Step Solution
- Step 1: Write the proportion equation
159,873.24 : 239,904.90 = 71,131.80 : x - Step 2: Convert to fraction form
159,873.24/239,904.90 = 71,131.80/x - Step 3: Cross multiply
159,873.24x = 239,904.90 × 71,131.80 - Step 4: Simplify right side
159,873.24x = 17,064,867,365.82 - Step 5: Solve for x
x = 17,064,867,365.82/159,873.24 - Step 6: Final answer
x = 106,739.99
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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.