Finding the Fourth Proportional to 103,638.05, 155,457.08 and 101,334.05
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Solution
The fourth proportional to 103,638.05, 155,457.08 and 101,334.05 is: 152,001.08
Step by Step Solution
- Step 1: Write the proportion equation
103,638.05 : 155,457.08 = 101,334.05 : x - Step 2: Convert to fraction form
103,638.05/155,457.08 = 101,334.05/x - Step 3: Cross multiply
103,638.05x = 155,457.08 × 101,334.05 - Step 4: Simplify right side
103,638.05x = 15,753,095,517.57 - Step 5: Solve for x
x = 15,753,095,517.57/103,638.05 - Step 6: Final answer
x = 152,001.08
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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.