Finding the Fourth Proportional to 103,614.36, 142,984.56 and 58,294.80
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Solution
The fourth proportional to 103,614.36, 142,984.56 and 58,294.80 is: 80,444.99
Step by Step Solution
- Step 1: Write the proportion equation
103,614.36 : 142,984.56 = 58,294.80 : x - Step 2: Convert to fraction form
103,614.36/142,984.56 = 58,294.80/x - Step 3: Cross multiply
103,614.36x = 142,984.56 × 58,294.80 - Step 4: Simplify right side
103,614.36x = 8,335,256,328.29 - Step 5: Solve for x
x = 8,335,256,328.29/103,614.36 - Step 6: Final answer
x = 80,444.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.