Finding the Fourth Proportional to 158,175.36, 218,281.99 and 86,555.39
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Solution
The fourth proportional to 158,175.36, 218,281.99 and 86,555.39 is: 119,446.43
Step by Step Solution
- Step 1: Write the proportion equation
158,175.36 : 218,281.99 = 86,555.39 : x - Step 2: Convert to fraction form
158,175.36/218,281.99 = 86,555.39/x - Step 3: Cross multiply
158,175.36x = 218,281.99 × 86,555.39 - Step 4: Simplify right side
158,175.36x = 18,893,481,250.24 - Step 5: Solve for x
x = 18,893,481,250.24/158,175.36 - Step 6: Final answer
x = 119,446.43
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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.