Finding the Fourth Proportional to 71,158.32, 106,088.88 and 69,340.68
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Solution
The fourth proportional to 71,158.32, 106,088.88 and 69,340.68 is: 103,378.99
Step by Step Solution
- Step 1: Write the proportion equation
71,158.32 : 106,088.88 = 69,340.68 : x - Step 2: Convert to fraction form
71,158.32/106,088.88 = 69,340.68/x - Step 3: Cross multiply
71,158.32x = 106,088.88 × 69,340.68 - Step 4: Simplify right side
71,158.32x = 7,356,275,079.64 - Step 5: Solve for x
x = 7,356,275,079.64/71,158.32 - Step 6: Final answer
x = 103,378.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.