Finding the Fourth Proportional to 103,587.20, 155,505.27 and 70,205.99
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Solution
The fourth proportional to 103,587.20, 155,505.27 and 70,205.99 is: 105,393.34
Step by Step Solution
- Step 1: Write the proportion equation
103,587.20 : 155,505.27 = 70,205.99 : x - Step 2: Convert to fraction form
103,587.20/155,505.27 = 70,205.99/x - Step 3: Cross multiply
103,587.20x = 155,505.27 × 70,205.99 - Step 4: Simplify right side
103,587.20x = 10,917,401,430.57 - Step 5: Solve for x
x = 10,917,401,430.57/103,587.20 - Step 6: Final answer
x = 105,393.34
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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.