Finding the Fourth Proportional to 159,613.06, 220,267.53 and 87,995.65
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Solution
The fourth proportional to 159,613.06, 220,267.53 and 87,995.65 is: 121,434.82
Step by Step Solution
- Step 1: Write the proportion equation
159,613.06 : 220,267.53 = 87,995.65 : x - Step 2: Convert to fraction form
159,613.06/220,267.53 = 87,995.65/x - Step 3: Cross multiply
159,613.06x = 220,267.53 × 87,995.65 - Step 4: Simplify right side
159,613.06x = 19,382,583,554.08 - Step 5: Solve for x
x = 19,382,583,554.08/159,613.06 - Step 6: Final answer
x = 121,434.82
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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.