Finding the Fourth Proportional to 160,207.92, 221,182.86 and 99,860.31
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Solution
The fourth proportional to 160,207.92, 221,182.86 and 99,860.31 is: 137,867.02
Step by Step Solution
- Step 1: Write the proportion equation
160,207.92 : 221,182.86 = 99,860.31 : x - Step 2: Convert to fraction form
160,207.92/221,182.86 = 99,860.31/x - Step 3: Cross multiply
160,207.92x = 221,182.86 × 99,860.31 - Step 4: Simplify right side
160,207.92x = 22,087,388,966.29 - Step 5: Solve for x
x = 22,087,388,966.29/160,207.92 - Step 6: Final answer
x = 137,867.02
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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.