Finding the Fourth Proportional to 158,720.29, 219,036.68 and 87,106.97
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Solution
The fourth proportional to 158,720.29, 219,036.68 and 87,106.97 is: 120,209.09
Step by Step Solution
- Step 1: Write the proportion equation
158,720.29 : 219,036.68 = 87,106.97 : x - Step 2: Convert to fraction form
158,720.29/219,036.68 = 87,106.97/x - Step 3: Cross multiply
158,720.29x = 219,036.68 × 87,106.97 - Step 4: Simplify right side
158,720.29x = 19,079,621,513.66 - Step 5: Solve for x
x = 19,079,621,513.66/158,720.29 - Step 6: Final answer
x = 120,209.09
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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.