Finding the Fourth Proportional to 141,775.69, 195,648.36 and 81,344.98
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Solution
The fourth proportional to 141,775.69, 195,648.36 and 81,344.98 is: 112,254.87
Step by Step Solution
- Step 1: Write the proportion equation
141,775.69 : 195,648.36 = 81,344.98 : x - Step 2: Convert to fraction form
141,775.69/195,648.36 = 81,344.98/x - Step 3: Cross multiply
141,775.69x = 195,648.36 × 81,344.98 - Step 4: Simplify right side
141,775.69x = 15,915,011,931.23 - Step 5: Solve for x
x = 15,915,011,931.23/141,775.69 - Step 6: Final answer
x = 112,254.87
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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.