Finding the Fourth Proportional to 157,386.14, 217,192.88 and 85,766.14
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Solution
The fourth proportional to 157,386.14, 217,192.88 and 85,766.14 is: 118,357.28
Step by Step Solution
- Step 1: Write the proportion equation
157,386.14 : 217,192.88 = 85,766.14 : x - Step 2: Convert to fraction form
157,386.14/217,192.88 = 85,766.14/x - Step 3: Cross multiply
157,386.14x = 217,192.88 × 85,766.14 - Step 4: Simplify right side
157,386.14x = 18,627,794,953.08 - Step 5: Solve for x
x = 18,627,794,953.08/157,386.14 - Step 6: Final answer
x = 118,357.28
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1.5x scale
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.