Finding the Fourth Proportional to 147,943.55, 204,151.84 and 83,415.08
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Solution
The fourth proportional to 147,943.55, 204,151.84 and 83,415.08 is: 115,107.02
Step by Step Solution
- Step 1: Write the proportion equation
147,943.55 : 204,151.84 = 83,415.08 : x - Step 2: Convert to fraction form
147,943.55/204,151.84 = 83,415.08/x - Step 3: Cross multiply
147,943.55x = 204,151.84 × 83,415.08 - Step 4: Simplify right side
147,943.55x = 17,029,340,836.45 - Step 5: Solve for x
x = 17,029,340,836.45/147,943.55 - Step 6: Final answer
x = 115,107.02
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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.