Finding the Fourth Proportional to 106,724.46, 147,284.12 and 61,402.52
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Solution
The fourth proportional to 106,724.46, 147,284.12 and 61,402.52 is: 84,737.99
Step by Step Solution
- Step 1: Write the proportion equation
106,724.46 : 147,284.12 = 61,402.52 : x - Step 2: Convert to fraction form
106,724.46/147,284.12 = 61,402.52/x - Step 3: Cross multiply
106,724.46x = 147,284.12 × 61,402.52 - Step 4: Simplify right side
106,724.46x = 9,043,616,123.98 - Step 5: Solve for x
x = 9,043,616,123.98/106,724.46 - Step 6: Final answer
x = 84,737.99
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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.