Finding the Fourth Proportional to 170,818.90, 235,730.09 and 99,203.54
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Solution
The fourth proportional to 170,818.90, 235,730.09 and 99,203.54 is: 136,900.88
Step by Step Solution
- Step 1: Write the proportion equation
170,818.90 : 235,730.09 = 99,203.54 : x - Step 2: Convert to fraction form
170,818.90/235,730.09 = 99,203.54/x - Step 3: Cross multiply
170,818.90x = 235,730.09 × 99,203.54 - Step 4: Simplify right side
170,818.90x = 23,385,258,575.18 - Step 5: Solve for x
x = 23,385,258,575.18/170,818.90 - Step 6: Final answer
x = 136,900.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.