Finding the Fourth Proportional to 159,881.13, 239,779.93 and 47,531.09
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Solution
The fourth proportional to 159,881.13, 239,779.93 and 47,531.09 is: 71,284.22
Step by Step Solution
- Step 1: Write the proportion equation
159,881.13 : 239,779.93 = 47,531.09 : x - Step 2: Convert to fraction form
159,881.13/239,779.93 = 47,531.09/x - Step 3: Cross multiply
159,881.13x = 239,779.93 × 47,531.09 - Step 4: Simplify right side
159,881.13x = 11,397,001,913.65 - Step 5: Solve for x
x = 11,397,001,913.65/159,881.13 - Step 6: Final answer
x = 71,284.22
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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.