Finding the Fourth Proportional to 159,194.64, 219,683.88 and 87,574.62
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Solution
The fourth proportional to 159,194.64, 219,683.88 and 87,574.62 is: 120,850.38
Step by Step Solution
- Step 1: Write the proportion equation
159,194.64 : 219,683.88 = 87,574.62 : x - Step 2: Convert to fraction form
159,194.64/219,683.88 = 87,574.62/x - Step 3: Cross multiply
159,194.64x = 219,683.88 × 87,574.62 - Step 4: Simplify right side
159,194.64x = 19,238,732,311.13 - Step 5: Solve for x
x = 19,238,732,311.13/159,194.64 - Step 6: Final answer
x = 120,850.38
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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.