Finding the Fourth Proportional to 103,633.75, 143,014.58 and 58,921.75
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Solution
The fourth proportional to 103,633.75, 143,014.58 and 58,921.75 is: 81,312.02
Step by Step Solution
- Step 1: Write the proportion equation
103,633.75 : 143,014.58 = 58,921.75 : x - Step 2: Convert to fraction form
103,633.75/143,014.58 = 58,921.75/x - Step 3: Cross multiply
103,633.75x = 143,014.58 × 58,921.75 - Step 4: Simplify right side
103,633.75x = 8,426,669,329.12 - Step 5: Solve for x
x = 8,426,669,329.12/103,633.75 - Step 6: Final answer
x = 81,312.02
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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.