Finding the Fourth Proportional to 159,487.20, 239,230.80 and 70,913.70
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Solution
The fourth proportional to 159,487.20, 239,230.80 and 70,913.70 is: 106,370.55
Step by Step Solution
- Step 1: Write the proportion equation
159,487.20 : 239,230.80 = 70,913.70 : x - Step 2: Convert to fraction form
159,487.20/239,230.80 = 70,913.70/x - Step 3: Cross multiply
159,487.20x = 239,230.80 × 70,913.70 - Step 4: Simplify right side
159,487.20x = 16,964,741,181.96 - Step 5: Solve for x
x = 16,964,741,181.96/159,487.20 - Step 6: Final answer
x = 106,370.55
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1.5x scale
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.