Finding the Fourth Proportional to 103,767.04, 143,212.08 and 58,453.75
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Solution
The fourth proportional to 103,767.04, 143,212.08 and 58,453.75 is: 80,673.82
Step by Step Solution
- Step 1: Write the proportion equation
103,767.04 : 143,212.08 = 58,453.75 : x - Step 2: Convert to fraction form
103,767.04/143,212.08 = 58,453.75/x - Step 3: Cross multiply
103,767.04x = 143,212.08 × 58,453.75 - Step 4: Simplify right side
103,767.04x = 8,371,283,519.52 - Step 5: Solve for x
x = 8,371,283,519.52/103,767.04 - Step 6: Final answer
x = 80,673.82
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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.