Finding the Fourth Proportional to 159,485.20, 239,227.80 and 70,911.70
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Solution
The fourth proportional to 159,485.20, 239,227.80 and 70,911.70 is: 106,367.55
Step by Step Solution
- Step 1: Write the proportion equation
159,485.20 : 239,227.80 = 70,911.70 : x - Step 2: Convert to fraction form
159,485.20/239,227.80 = 70,911.70/x - Step 3: Cross multiply
159,485.20x = 239,227.80 × 70,911.70 - Step 4: Simplify right side
159,485.20x = 16,964,049,985.26 - Step 5: Solve for x
x = 16,964,049,985.26/159,485.20 - Step 6: Final answer
x = 106,367.55
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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.