Finding the Fourth Proportional to 157,316.13, 217,080.08 and 88,394.65
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Solution
The fourth proportional to 157,316.13, 217,080.08 and 88,394.65 is: 121,975.53
Step by Step Solution
- Step 1: Write the proportion equation
157,316.13 : 217,080.08 = 88,394.65 : x - Step 2: Convert to fraction form
157,316.13/217,080.08 = 88,394.65/x - Step 3: Cross multiply
157,316.13x = 217,080.08 × 88,394.65 - Step 4: Simplify right side
157,316.13x = 19,188,717,693.57 - Step 5: Solve for x
x = 19,188,717,693.57/157,316.13 - Step 6: Final answer
x = 121,975.53
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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.