Finding the Fourth Proportional to 159,725.21, 239,384.30 and 84,881.21
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Solution
The fourth proportional to 159,725.21, 239,384.30 and 84,881.21 is: 127,213.66
Step by Step Solution
- Step 1: Write the proportion equation
159,725.21 : 239,384.30 = 84,881.21 : x - Step 2: Convert to fraction form
159,725.21/239,384.30 = 84,881.21/x - Step 3: Cross multiply
159,725.21x = 239,384.30 × 84,881.21 - Step 4: Simplify right side
159,725.21x = 20,319,229,039.00 - Step 5: Solve for x
x = 20,319,229,039.00/159,725.21 - Step 6: Final answer
x = 127,213.66
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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.