Finding the Fourth Proportional to 159,768.60, 220,479.06 and 88,149.12
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Solution
The fourth proportional to 159,768.60, 220,479.06 and 88,149.12 is: 121,644.90
Step by Step Solution
- Step 1: Write the proportion equation
159,768.60 : 220,479.06 = 88,149.12 : x - Step 2: Convert to fraction form
159,768.60/220,479.06 = 88,149.12/x - Step 3: Cross multiply
159,768.60x = 220,479.06 × 88,149.12 - Step 4: Simplify right side
159,768.60x = 19,435,035,117.43 - Step 5: Solve for x
x = 19,435,035,117.43/159,768.60 - Step 6: Final answer
x = 121,644.90
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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.