Finding the Fourth Proportional to 133,207.20, 183,852.18 and 79,465.32
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Solution
The fourth proportional to 133,207.20, 183,852.18 and 79,465.32 is: 109,677.80
Step by Step Solution
- Step 1: Write the proportion equation
133,207.20 : 183,852.18 = 79,465.32 : x - Step 2: Convert to fraction form
133,207.20/183,852.18 = 79,465.32/x - Step 3: Cross multiply
133,207.20x = 183,852.18 × 79,465.32 - Step 4: Simplify right side
133,207.20x = 14,609,872,316.40 - Step 5: Solve for x
x = 14,609,872,316.40/133,207.20 - Step 6: Final answer
x = 109,677.80
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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.