Finding the Fourth Proportional to 133,106.64, 183,685.76 and 72,677.09
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Solution
The fourth proportional to 133,106.64, 183,685.76 and 72,677.09 is: 100,293.62
Step by Step Solution
- Step 1: Write the proportion equation
133,106.64 : 183,685.76 = 72,677.09 : x - Step 2: Convert to fraction form
133,106.64/183,685.76 = 72,677.09/x - Step 3: Cross multiply
133,106.64x = 183,685.76 × 72,677.09 - Step 4: Simplify right side
133,106.64x = 13,349,746,879.61 - Step 5: Solve for x
x = 13,349,746,879.61/133,106.64 - Step 6: Final answer
x = 100,293.62
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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.