Finding the Fourth Proportional to 106,691.68, 147,232.38 and 58,943.80
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Solution
The fourth proportional to 106,691.68, 147,232.38 and 58,943.80 is: 81,341.26
Step by Step Solution
- Step 1: Write the proportion equation
106,691.68 : 147,232.38 = 58,943.80 : x - Step 2: Convert to fraction form
106,691.68/147,232.38 = 58,943.80/x - Step 3: Cross multiply
106,691.68x = 147,232.38 × 58,943.80 - Step 4: Simplify right side
106,691.68x = 8,678,435,960.24 - Step 5: Solve for x
x = 8,678,435,960.24/106,691.68 - Step 6: Final answer
x = 81,341.26
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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.