Finding the Fourth Proportional to 157,779.57, 217,735.62 and 93,272.06
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Solution
The fourth proportional to 157,779.57, 217,735.62 and 93,272.06 is: 128,715.33
Step by Step Solution
- Step 1: Write the proportion equation
157,779.57 : 217,735.62 = 93,272.06 : x - Step 2: Convert to fraction form
157,779.57/217,735.62 = 93,272.06/x - Step 3: Cross multiply
157,779.57x = 217,735.62 × 93,272.06 - Step 4: Simplify right side
157,779.57x = 20,308,649,044.91 - Step 5: Solve for x
x = 20,308,649,044.91/157,779.57 - Step 6: Final answer
x = 128,715.33
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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.