Finding the Fourth Proportional to 103,645.70, 155,468.55 and 97,813.70
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Solution
The fourth proportional to 103,645.70, 155,468.55 and 97,813.70 is: 146,720.55
Step by Step Solution
- Step 1: Write the proportion equation
103,645.70 : 155,468.55 = 97,813.70 : x - Step 2: Convert to fraction form
103,645.70/155,468.55 = 97,813.70/x - Step 3: Cross multiply
103,645.70x = 155,468.55 × 97,813.70 - Step 4: Simplify right side
103,645.70x = 15,206,954,109.14 - Step 5: Solve for x
x = 15,206,954,109.14/103,645.70 - Step 6: Final answer
x = 146,720.55
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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.