Finding the Fourth Proportional to 159,860.68, 239,739.11 and 53,215.99
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Solution
The fourth proportional to 159,860.68, 239,739.11 and 53,215.99 is: 79,806.71
Step by Step Solution
- Step 1: Write the proportion equation
159,860.68 : 239,739.11 = 53,215.99 : x - Step 2: Convert to fraction form
159,860.68/239,739.11 = 53,215.99/x - Step 3: Cross multiply
159,860.68x = 239,739.11 × 53,215.99 - Step 4: Simplify right side
159,860.68x = 12,757,954,613.20 - Step 5: Solve for x
x = 12,757,954,613.20/159,860.68 - Step 6: Final answer
x = 79,806.71
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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.