Finding the Fourth Proportional to 147,445.70, 221,168.55 and 68,713.70
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Solution
The fourth proportional to 147,445.70, 221,168.55 and 68,713.70 is: 103,070.55
Step by Step Solution
- Step 1: Write the proportion equation
147,445.70 : 221,168.55 = 68,713.70 : x - Step 2: Convert to fraction form
147,445.70/221,168.55 = 68,713.70/x - Step 3: Cross multiply
147,445.70x = 221,168.55 × 68,713.70 - Step 4: Simplify right side
147,445.70x = 15,197,309,394.14 - Step 5: Solve for x
x = 15,197,309,394.14/147,445.70 - Step 6: Final answer
x = 103,070.55
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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.