Finding the Fourth Proportional to 110,940.76, 153,224.49 and 74,579.05
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Solution
The fourth proportional to 110,940.76, 153,224.49 and 74,579.05 is: 103,003.95
Step by Step Solution
- Step 1: Write the proportion equation
110,940.76 : 153,224.49 = 74,579.05 : x - Step 2: Convert to fraction form
110,940.76/153,224.49 = 74,579.05/x - Step 3: Cross multiply
110,940.76x = 153,224.49 × 74,579.05 - Step 4: Simplify right side
110,940.76x = 11,427,336,900.93 - Step 5: Solve for x
x = 11,427,336,900.93/110,940.76 - Step 6: Final answer
x = 103,003.95
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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.