Finding the Fourth Proportional to 111,107.28, 153,342.72 and 62,718.96
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Solution
The fourth proportional to 111,107.28, 153,342.72 and 62,718.96 is: 86,560.45
Step by Step Solution
- Step 1: Write the proportion equation
111,107.28 : 153,342.72 = 62,718.96 : x - Step 2: Convert to fraction form
111,107.28/153,342.72 = 62,718.96/x - Step 3: Cross multiply
111,107.28x = 153,342.72 × 62,718.96 - Step 4: Simplify right side
111,107.28x = 9,617,495,921.97 - Step 5: Solve for x
x = 9,617,495,921.97/111,107.28 - Step 6: Final answer
x = 86,560.45
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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.