Finding the Fourth Proportional to 110,206.20, 165,309.30 and 103,639.80
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Solution
The fourth proportional to 110,206.20, 165,309.30 and 103,639.80 is: 155,459.70
Step by Step Solution
- Step 1: Write the proportion equation
110,206.20 : 165,309.30 = 103,639.80 : x - Step 2: Convert to fraction form
110,206.20/165,309.30 = 103,639.80/x - Step 3: Cross multiply
110,206.20x = 165,309.30 × 103,639.80 - Step 4: Simplify right side
110,206.20x = 17,132,622,790.14 - Step 5: Solve for x
x = 17,132,622,790.14/110,206.20 - Step 6: Final answer
x = 155,459.70
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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.