Finding the Fourth Proportional to 159,621.76, 239,432.64 and 48,813.76
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Solution
The fourth proportional to 159,621.76, 239,432.64 and 48,813.76 is: 73,220.64
Step by Step Solution
- Step 1: Write the proportion equation
159,621.76 : 239,432.64 = 48,813.76 : x - Step 2: Convert to fraction form
159,621.76/239,432.64 = 48,813.76/x - Step 3: Cross multiply
159,621.76x = 239,432.64 × 48,813.76 - Step 4: Simplify right side
159,621.76x = 11,687,607,425.13 - Step 5: Solve for x
x = 11,687,607,425.13/159,621.76 - Step 6: Final answer
x = 73,220.64
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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.