Finding the Fourth Proportional to 134,948.05, 186,233.84 and 83,990.95
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Solution
The fourth proportional to 134,948.05, 186,233.84 and 83,990.95 is: 115,910.95
Step by Step Solution
- Step 1: Write the proportion equation
134,948.05 : 186,233.84 = 83,990.95 : x - Step 2: Convert to fraction form
134,948.05/186,233.84 = 83,990.95/x - Step 3: Cross multiply
134,948.05x = 186,233.84 × 83,990.95 - Step 4: Simplify right side
134,948.05x = 15,641,957,143.75 - Step 5: Solve for x
x = 15,641,957,143.75/134,948.05 - Step 6: Final answer
x = 115,910.95
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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.