Finding the Fourth Proportional to 157,215.87, 216,981.18 and 92,696.94
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Solution
The fourth proportional to 157,215.87, 216,981.18 and 92,696.94 is: 127,935.50
Step by Step Solution
- Step 1: Write the proportion equation
157,215.87 : 216,981.18 = 92,696.94 : x - Step 2: Convert to fraction form
157,215.87/216,981.18 = 92,696.94/x - Step 3: Cross multiply
157,215.87x = 216,981.18 × 92,696.94 - Step 4: Simplify right side
157,215.87x = 20,113,491,423.59 - Step 5: Solve for x
x = 20,113,491,423.59/157,215.87 - Step 6: Final answer
x = 127,935.50
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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.