Finding the Fourth Proportional to 159,613.14, 220,267.54 and 87,995.68
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Solution
The fourth proportional to 159,613.14, 220,267.54 and 87,995.68 is: 121,434.81
Step by Step Solution
- Step 1: Write the proportion equation
159,613.14 : 220,267.54 = 87,995.68 : x - Step 2: Convert to fraction form
159,613.14/220,267.54 = 87,995.68/x - Step 3: Cross multiply
159,613.14x = 220,267.54 × 87,995.68 - Step 4: Simplify right side
159,613.14x = 19,382,591,964.23 - Step 5: Solve for x
x = 19,382,591,964.23/159,613.14 - Step 6: Final answer
x = 121,434.81
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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.