Finding the Fourth Proportional to 159,128.76, 238,721.94 and 48,317.88
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Solution
The fourth proportional to 159,128.76, 238,721.94 and 48,317.88 is: 72,485.56
Step by Step Solution
- Step 1: Write the proportion equation
159,128.76 : 238,721.94 = 48,317.88 : x - Step 2: Convert to fraction form
159,128.76/238,721.94 = 48,317.88/x - Step 3: Cross multiply
159,128.76x = 238,721.94 × 48,317.88 - Step 4: Simplify right side
159,128.76x = 11,534,538,050.29 - Step 5: Solve for x
x = 11,534,538,050.29/159,128.76 - Step 6: Final answer
x = 72,485.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.