Finding the Fourth Proportional to 157,510.74, 217,370.07 and 85,894.68
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Solution
The fourth proportional to 157,510.74, 217,370.07 and 85,894.68 is: 118,537.52
Step by Step Solution
- Step 1: Write the proportion equation
157,510.74 : 217,370.07 = 85,894.68 : x - Step 2: Convert to fraction form
157,510.74/217,370.07 = 85,894.68/x - Step 3: Cross multiply
157,510.74x = 217,370.07 × 85,894.68 - Step 4: Simplify right side
157,510.74x = 18,670,932,604.23 - Step 5: Solve for x
x = 18,670,932,604.23/157,510.74 - Step 6: Final answer
x = 118,537.52
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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.