Finding the Fourth Proportional to 157,102.26, 216,784.92 and 93,427.74
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Solution
The fourth proportional to 157,102.26, 216,784.92 and 93,427.74 is: 128,920.65
Step by Step Solution
- Step 1: Write the proportion equation
157,102.26 : 216,784.92 = 93,427.74 : x - Step 2: Convert to fraction form
157,102.26/216,784.92 = 93,427.74/x - Step 3: Cross multiply
157,102.26x = 216,784.92 × 93,427.74 - Step 4: Simplify right side
157,102.26x = 20,253,725,141.68 - Step 5: Solve for x
x = 20,253,725,141.68/157,102.26 - Step 6: Final answer
x = 128,920.65
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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.