Finding the Fourth Proportional to 140,038.29, 193,197.83 and 86,229.99
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Solution
The fourth proportional to 140,038.29, 193,197.83 and 86,229.99 is: 118,963.51
Step by Step Solution
- Step 1: Write the proportion equation
140,038.29 : 193,197.83 = 86,229.99 : x - Step 2: Convert to fraction form
140,038.29/193,197.83 = 86,229.99/x - Step 3: Cross multiply
140,038.29x = 193,197.83 × 86,229.99 - Step 4: Simplify right side
140,038.29x = 16,659,446,517.77 - Step 5: Solve for x
x = 16,659,446,517.77/140,038.29 - Step 6: Final answer
x = 118,963.51
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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.