Finding the Fourth Proportional to 106,981.26, 147,642.44 and 59,239.05
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Solution
The fourth proportional to 106,981.26, 147,642.44 and 59,239.05 is: 81,754.49
Step by Step Solution
- Step 1: Write the proportion equation
106,981.26 : 147,642.44 = 59,239.05 : x - Step 2: Convert to fraction form
106,981.26/147,642.44 = 59,239.05/x - Step 3: Cross multiply
106,981.26x = 147,642.44 × 59,239.05 - Step 4: Simplify right side
106,981.26x = 8,746,197,885.28 - Step 5: Solve for x
x = 8,746,197,885.28/106,981.26 - Step 6: Final answer
x = 81,754.49
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1.5x scale
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.