Finding the Fourth Proportional to 145,865.01, 199,980.99 and 143,207.94
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Solution
The fourth proportional to 145,865.01, 199,980.99 and 143,207.94 is: 196,338.15
Step by Step Solution
- Step 1: Write the proportion equation
145,865.01 : 199,980.99 = 143,207.94 : x - Step 2: Convert to fraction form
145,865.01/199,980.99 = 143,207.94/x - Step 3: Cross multiply
145,865.01x = 199,980.99 × 143,207.94 - Step 4: Simplify right side
145,865.01x = 28,638,865,617.06 - Step 5: Solve for x
x = 28,638,865,617.06/145,865.01 - Step 6: Final answer
x = 196,338.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.