Finding the Fourth Proportional to 125,947.68, 173,801.52 and 81,235.68
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Solution
The fourth proportional to 125,947.68, 173,801.52 and 81,235.68 is: 112,101.19
Step by Step Solution
- Step 1: Write the proportion equation
125,947.68 : 173,801.52 = 81,235.68 : x - Step 2: Convert to fraction form
125,947.68/173,801.52 = 81,235.68/x - Step 3: Cross multiply
125,947.68x = 173,801.52 × 81,235.68 - Step 4: Simplify right side
125,947.68x = 14,118,884,662.23 - Step 5: Solve for x
x = 14,118,884,662.23/125,947.68 - Step 6: Final answer
x = 112,101.19
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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.